Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile

To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic ac...
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Autor*in:	Soto-Rivas, Karina [verfasserIn] Richter, David [verfasserIn] Escauriaza, Cristian [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Marine energy FVCOM MHK devices

Übergeordnetes Werk:	Enthalten in: Renewable energy - Amsterdam [u.a.] : Elsevier Science, 1991, 195, Seite 637-647
Übergeordnetes Werk:	volume:195 ; pages:637-647

DOI / URN:	10.1016/j.renene.2022.05.150

Katalog-ID:	ELV00821882X

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520			\|a To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes.
650		4	\|a Marine energy
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700	1		\|a Escauriaza, Cristian \|e verfasserin \|4 aut
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matchkey_str	article:18790682:2022----::lwfetofntszdiatrierasnhcaac
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bklnumber	52.56
publishDate	2022
allfields	10.1016/j.renene.2022.05.150 doi (DE-627)ELV00821882X (ELSEVIER)S0960-1481(22)00807-2 DE-627 ger DE-627 rda eng 530 620 DE-600 52.56 bkl Soto-Rivas, Karina verfasserin aut Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes. Marine energy FVCOM MHK devices Richter, David verfasserin (orcid)0000-0001-6389-0715 aut Escauriaza, Cristian verfasserin aut Enthalten in Renewable energy Amsterdam [u.a.] : Elsevier Science, 1991 195, Seite 637-647 Online-Ressource (DE-627)320412091 (DE-600)2001449-1 (DE-576)252613937 1879-0682 nnns volume:195 pages:637-647 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.56 Regenerative Energieformen alternative Energieformen AR 195 637-647
spelling	10.1016/j.renene.2022.05.150 doi (DE-627)ELV00821882X (ELSEVIER)S0960-1481(22)00807-2 DE-627 ger DE-627 rda eng 530 620 DE-600 52.56 bkl Soto-Rivas, Karina verfasserin aut Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes. Marine energy FVCOM MHK devices Richter, David verfasserin (orcid)0000-0001-6389-0715 aut Escauriaza, Cristian verfasserin aut Enthalten in Renewable energy Amsterdam [u.a.] : Elsevier Science, 1991 195, Seite 637-647 Online-Ressource (DE-627)320412091 (DE-600)2001449-1 (DE-576)252613937 1879-0682 nnns volume:195 pages:637-647 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.56 Regenerative Energieformen alternative Energieformen AR 195 637-647
allfields_unstemmed	10.1016/j.renene.2022.05.150 doi (DE-627)ELV00821882X (ELSEVIER)S0960-1481(22)00807-2 DE-627 ger DE-627 rda eng 530 620 DE-600 52.56 bkl Soto-Rivas, Karina verfasserin aut Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes. Marine energy FVCOM MHK devices Richter, David verfasserin (orcid)0000-0001-6389-0715 aut Escauriaza, Cristian verfasserin aut Enthalten in Renewable energy Amsterdam [u.a.] : Elsevier Science, 1991 195, Seite 637-647 Online-Ressource (DE-627)320412091 (DE-600)2001449-1 (DE-576)252613937 1879-0682 nnns volume:195 pages:637-647 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.56 Regenerative Energieformen alternative Energieformen AR 195 637-647
allfieldsGer	10.1016/j.renene.2022.05.150 doi (DE-627)ELV00821882X (ELSEVIER)S0960-1481(22)00807-2 DE-627 ger DE-627 rda eng 530 620 DE-600 52.56 bkl Soto-Rivas, Karina verfasserin aut Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes. Marine energy FVCOM MHK devices Richter, David verfasserin (orcid)0000-0001-6389-0715 aut Escauriaza, Cristian verfasserin aut Enthalten in Renewable energy Amsterdam [u.a.] : Elsevier Science, 1991 195, Seite 637-647 Online-Ressource (DE-627)320412091 (DE-600)2001449-1 (DE-576)252613937 1879-0682 nnns volume:195 pages:637-647 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.56 Regenerative Energieformen alternative Energieformen AR 195 637-647
allfieldsSound	10.1016/j.renene.2022.05.150 doi (DE-627)ELV00821882X (ELSEVIER)S0960-1481(22)00807-2 DE-627 ger DE-627 rda eng 530 620 DE-600 52.56 bkl Soto-Rivas, Karina verfasserin aut Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes. Marine energy FVCOM MHK devices Richter, David verfasserin (orcid)0000-0001-6389-0715 aut Escauriaza, Cristian verfasserin aut Enthalten in Renewable energy Amsterdam [u.a.] : Elsevier Science, 1991 195, Seite 637-647 Online-Ressource (DE-627)320412091 (DE-600)2001449-1 (DE-576)252613937 1879-0682 nnns volume:195 pages:637-647 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 52.56 Regenerative Energieformen alternative Energieformen AR 195 637-647
language	English
source	Enthalten in Renewable energy 195, Seite 637-647 volume:195 pages:637-647
sourceStr	Enthalten in Renewable energy 195, Seite 637-647 volume:195 pages:637-647
format_phy_str_mv	Article
bklname	Regenerative Energieformen alternative Energieformen
institution	findex.gbv.de
topic_facet	Marine energy FVCOM MHK devices
dewey-raw	530
isfreeaccess_bool	false
container_title	Renewable energy
authorswithroles_txt_mv	Soto-Rivas, Karina @@aut@@ Richter, David @@aut@@ Escauriaza, Cristian @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	320412091
dewey-sort	3530
id	ELV00821882X
language_de	englisch
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author	Soto-Rivas, Karina
spellingShingle	Soto-Rivas, Karina ddc 530 bkl 52.56 misc Marine energy misc FVCOM misc MHK devices Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile
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topic_title	530 620 DE-600 52.56 bkl Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile Marine energy FVCOM MHK devices
topic	ddc 530 bkl 52.56 misc Marine energy misc FVCOM misc MHK devices
topic_unstemmed	ddc 530 bkl 52.56 misc Marine energy misc FVCOM misc MHK devices
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title	Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile
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title_full	Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile
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author_browse	Soto-Rivas, Karina Richter, David Escauriaza, Cristian
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title_sort	flow effects of finite-sized tidal turbine arrays in the chacao channel, southern chile
title_auth	Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile
abstract	To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes.
abstractGer	To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes.
abstract_unstemmed	To characterize energy resources and study of hydrodynamic effects induced by marine hydrokinetic devices in tidal channels, numerical models need to provide reliable representations of turbine arrays. In regions disconnected from the grid, near coastal protected areas and other relevant economic activities, there is a pressing need to evaluate the impacts of limited-size arrays. Here, we use the emblematic Chacao Channel in Southern Chile to understand the effects of bathymetry and array placement on energy extraction in strongly tidal channels. We implement in FVCOM a parameterization from a previously derived high-resolution model to represent a group of turbines in different locations. We first analyze the complexity of the bathymetry to define the appropriate grid size and obtain a correct representation of the interaction of turbines with the bed morphology. We simulate a base case to identify three suitable locations in the channel where we analyze the effects of the turbines: From simulations we compute the changes in the mean velocity, turbulent kinetic energy (TKE), and bed shear stress. The results show that baseline velocities and TKE are the main factors on the momentum extraction despite the bed complexity. However, in flatter bathymetries, changes on TKE and bottom shear are significantly larger compared to complex morphologies, since turbine arrays modify considerably the original flow conditions. Simulations also provide additional insights that are critical to evaluate the local impacts, showing the directionally-dependent flow resistance of tidal channels, in which the interactions with bathymetry change the downstream effects of turbine arrays in flood or ebb regimes.
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title_short	Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile
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doi_str	10.1016/j.renene.2022.05.150
up_date	2024-07-06T18:57:07.682Z
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Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile

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