Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow
Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equa...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yang, F. Y. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Anmerkung: |
© The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Energy, ecology and environment - Berlin : Springer, 2016, 8(2022), 1 vom: 01. Sept., Seite 50-61 |
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| Übergeordnetes Werk: |
volume:8 ; year:2022 ; number:1 ; day:01 ; month:09 ; pages:50-61 |
| Links: |
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| DOI / URN: |
10.1007/s40974-022-00258-1 |
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| Katalog-ID: |
SPR049170228 |
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| 520 | |a Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. | ||
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| 700 | 1 | |a Wang, P. |4 aut | |
| 700 | 1 | |a Chen, X. L. |4 aut | |
| 700 | 1 | |a Zeng, L. |4 aut | |
| 700 | 1 | |a Guo, X. L. |4 aut | |
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10.1007/s40974-022-00258-1 doi (DE-627)SPR049170228 (SPR)s40974-022-00258-1-e DE-627 ger DE-627 rakwb eng Yang, F. Y. verfasserin aut Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. Active particles (dpeaa)DE-He213 Longitudinal dispersion (dpeaa)DE-He213 Open-channel flow (dpeaa)DE-He213 Turbulence (dpeaa)DE-He213 Wang, P. aut Chen, X. L. aut Zeng, L. aut Guo, X. L. aut Enthalten in Energy, ecology and environment Berlin : Springer, 2016 8(2022), 1 vom: 01. Sept., Seite 50-61 (DE-627)847584267 (DE-600)2846872-7 2363-8338 nnns volume:8 year:2022 number:1 day:01 month:09 pages:50-61 https://dx.doi.org/10.1007/s40974-022-00258-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 8 2022 1 01 09 50-61 |
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10.1007/s40974-022-00258-1 doi (DE-627)SPR049170228 (SPR)s40974-022-00258-1-e DE-627 ger DE-627 rakwb eng Yang, F. Y. verfasserin aut Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. Active particles (dpeaa)DE-He213 Longitudinal dispersion (dpeaa)DE-He213 Open-channel flow (dpeaa)DE-He213 Turbulence (dpeaa)DE-He213 Wang, P. aut Chen, X. L. aut Zeng, L. aut Guo, X. L. aut Enthalten in Energy, ecology and environment Berlin : Springer, 2016 8(2022), 1 vom: 01. Sept., Seite 50-61 (DE-627)847584267 (DE-600)2846872-7 2363-8338 nnns volume:8 year:2022 number:1 day:01 month:09 pages:50-61 https://dx.doi.org/10.1007/s40974-022-00258-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 8 2022 1 01 09 50-61 |
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10.1007/s40974-022-00258-1 doi (DE-627)SPR049170228 (SPR)s40974-022-00258-1-e DE-627 ger DE-627 rakwb eng Yang, F. Y. verfasserin aut Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. Active particles (dpeaa)DE-He213 Longitudinal dispersion (dpeaa)DE-He213 Open-channel flow (dpeaa)DE-He213 Turbulence (dpeaa)DE-He213 Wang, P. aut Chen, X. L. aut Zeng, L. aut Guo, X. L. aut Enthalten in Energy, ecology and environment Berlin : Springer, 2016 8(2022), 1 vom: 01. Sept., Seite 50-61 (DE-627)847584267 (DE-600)2846872-7 2363-8338 nnns volume:8 year:2022 number:1 day:01 month:09 pages:50-61 https://dx.doi.org/10.1007/s40974-022-00258-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 8 2022 1 01 09 50-61 |
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10.1007/s40974-022-00258-1 doi (DE-627)SPR049170228 (SPR)s40974-022-00258-1-e DE-627 ger DE-627 rakwb eng Yang, F. Y. verfasserin aut Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. Active particles (dpeaa)DE-He213 Longitudinal dispersion (dpeaa)DE-He213 Open-channel flow (dpeaa)DE-He213 Turbulence (dpeaa)DE-He213 Wang, P. aut Chen, X. L. aut Zeng, L. aut Guo, X. L. aut Enthalten in Energy, ecology and environment Berlin : Springer, 2016 8(2022), 1 vom: 01. Sept., Seite 50-61 (DE-627)847584267 (DE-600)2846872-7 2363-8338 nnns volume:8 year:2022 number:1 day:01 month:09 pages:50-61 https://dx.doi.org/10.1007/s40974-022-00258-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 8 2022 1 01 09 50-61 |
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10.1007/s40974-022-00258-1 doi (DE-627)SPR049170228 (SPR)s40974-022-00258-1-e DE-627 ger DE-627 rakwb eng Yang, F. Y. verfasserin aut Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. Active particles (dpeaa)DE-He213 Longitudinal dispersion (dpeaa)DE-He213 Open-channel flow (dpeaa)DE-He213 Turbulence (dpeaa)DE-He213 Wang, P. aut Chen, X. L. aut Zeng, L. aut Guo, X. L. aut Enthalten in Energy, ecology and environment Berlin : Springer, 2016 8(2022), 1 vom: 01. Sept., Seite 50-61 (DE-627)847584267 (DE-600)2846872-7 2363-8338 nnns volume:8 year:2022 number:1 day:01 month:09 pages:50-61 https://dx.doi.org/10.1007/s40974-022-00258-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_266 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 8 2022 1 01 09 50-61 |
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Y.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2022</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Active particles</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Longitudinal dispersion</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Open-channel flow</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Turbulence</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, P.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chen, X. 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Yang, F. Y. |
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Yang, F. Y. misc Active particles misc Longitudinal dispersion misc Open-channel flow misc Turbulence Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow |
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Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow Active particles (dpeaa)DE-He213 Longitudinal dispersion (dpeaa)DE-He213 Open-channel flow (dpeaa)DE-He213 Turbulence (dpeaa)DE-He213 |
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Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow |
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longitudinal dispersion of multiple microcystis patches in a turbulent open-channel flow |
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Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow |
| abstract |
Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstractGer |
Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstract_unstemmed |
Abstract Longitudinal dispersion of multiple Microcystis patches is significant for understanding the mechanisms of Microcystis blooms in ambient waters. Presented in this paper is an analysis of multiple Microcystis patches in a turbulent open channel flow, based on the concentration transport equation. Results show that the total amount of Microcystis on a streamline, centre-of-mass motion, as well as longitudinal dispersion finally stabilise for multiple Microcystis patches as they do for a single Microcystis patch. The centre-of-mass velocity exhibits a weak oscillation with a small amplitude in the vertical direction for multiple Microcystis patches, but it can reach the same migration velocity for long time evolution. The large %$\mathrm{Pe}_z%$ results in an asymptotic increase of centre-of-mass velocity towards a positive value except for very early time for the Microcystis patches in close proximity to the free surface, and an initial reduction to zero, subsequent increase to a maximum, and final decrease to a constant for the bed bottom, where %$\mathrm{Pe}_z%$ represents the relative strength of vertical swimming and the total effective diffusion in the vertical direction. For the case of large %$\mathrm{Pe}_z%$, the longitudinal dispersion coefficient first increases to a maximum, then decrease to a minimum, and finally increases to a constant for the Microcystis patches near the free surface. The effects of initial distribution on the evolution of the concentration of Microcystis patch mainly appear during the initial stage and can be negligible for the long time evolution. The Microcystis patches tend to accumulate near the free surface due to the vertical migration velocity caused by density differences between the Microcystis and the ambient water. © The Joint Center on Global Change and Earth System Science of the University of Maryland and Beijing Normal University 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Longitudinal dispersion of multiple Microcystis patches in a turbulent open-channel flow |
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https://dx.doi.org/10.1007/s40974-022-00258-1 |
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Wang, P. Chen, X. L. Zeng, L. Guo, X. L. |
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Wang, P. Chen, X. L. Zeng, L. Guo, X. L. |
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10.1007/s40974-022-00258-1 |
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2024-07-03T23:39:30.613Z |
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| score |
7.3985167 |