Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability

Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In thi...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Wu, Qing [verfasserIn] Li, Yikai [verfasserIn] Shinjo, Junji [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation

Übergeordnetes Werk:	Enthalten in: International journal of multiphase flow - Oxford : Pergamon Press, 1973, 120
Übergeordnetes Werk:	volume:120

DOI / URN:	10.1016/j.ijmultiphaseflow.2019.103107

Katalog-ID:	ELV002995123

Internformat


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024	7		\|a 10.1016/j.ijmultiphaseflow.2019.103107 \|2 doi
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100	1		\|a Wu, Qing \|e verfasserin \|4 aut
245	1	0	\|a Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability
264		1	\|c 2019
336			\|a nicht spezifiziert \|b zzz \|2 rdacontent
337			\|a Computermedien \|b c \|2 rdamedia
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520			\|a Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability.
650		4	\|a CLSVOF
650		4	\|a Rayleigh-Taylor instability
650		4	\|a Nonlinear development
650		4	\|a Spike formation
700	1		\|a Li, Yikai \|e verfasserin \|4 aut
700	1		\|a Shinjo, Junji \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t International journal of multiphase flow \|d Oxford : Pergamon Press, 1973 \|g 120 \|h Online-Ressource \|w (DE-627)320510204 \|w (DE-600)2013320-0 \|w (DE-576)096806605 \|x 1879-3533 \|7 nnns
773	1	8	\|g volume:120
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912			\|a GBV_ILN_32
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_63
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
912			\|a GBV_ILN_95
912			\|a GBV_ILN_100
912			\|a GBV_ILN_101
912			\|a GBV_ILN_105
912			\|a GBV_ILN_110
912			\|a GBV_ILN_150
912			\|a GBV_ILN_151
912			\|a GBV_ILN_224
912			\|a GBV_ILN_370
912			\|a GBV_ILN_602
912			\|a GBV_ILN_702
912			\|a GBV_ILN_2003
912			\|a GBV_ILN_2004
912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2008
912			\|a GBV_ILN_2010
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
912			\|a GBV_ILN_2056
912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
912			\|a GBV_ILN_2113
912			\|a GBV_ILN_2118
912			\|a GBV_ILN_2122
912			\|a GBV_ILN_2129
912			\|a GBV_ILN_2143
912			\|a GBV_ILN_2147
912			\|a GBV_ILN_2148
912			\|a GBV_ILN_2152
912			\|a GBV_ILN_2153
912			\|a GBV_ILN_2190
912			\|a GBV_ILN_2336
912			\|a GBV_ILN_2470
912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4046
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4322
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
936	b	k	\|a 33.00 \|j Physik: Allgemeines
951			\|a AR
952			\|d 120

Indexfelder

author_variant	q w qw y l yl j s js
matchkey_str	article:18793533:2019----::ealdolnadnmcoteiudpkdvlpetnaeumducuebahedmn
hierarchy_sort_str	2019
bklnumber	33.00
publishDate	2019
allfields	10.1016/j.ijmultiphaseflow.2019.103107 doi (DE-627)ELV002995123 (ELSEVIER)S0301-9322(19)30126-0 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Wu, Qing verfasserin aut Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability. CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation Li, Yikai verfasserin aut Shinjo, Junji verfasserin aut Enthalten in International journal of multiphase flow Oxford : Pergamon Press, 1973 120 Online-Ressource (DE-627)320510204 (DE-600)2013320-0 (DE-576)096806605 1879-3533 nnns volume:120 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_2008 GBV_ILN_2010 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_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 120
spelling	10.1016/j.ijmultiphaseflow.2019.103107 doi (DE-627)ELV002995123 (ELSEVIER)S0301-9322(19)30126-0 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Wu, Qing verfasserin aut Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability. CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation Li, Yikai verfasserin aut Shinjo, Junji verfasserin aut Enthalten in International journal of multiphase flow Oxford : Pergamon Press, 1973 120 Online-Ressource (DE-627)320510204 (DE-600)2013320-0 (DE-576)096806605 1879-3533 nnns volume:120 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_2008 GBV_ILN_2010 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_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 120
allfields_unstemmed	10.1016/j.ijmultiphaseflow.2019.103107 doi (DE-627)ELV002995123 (ELSEVIER)S0301-9322(19)30126-0 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Wu, Qing verfasserin aut Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability. CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation Li, Yikai verfasserin aut Shinjo, Junji verfasserin aut Enthalten in International journal of multiphase flow Oxford : Pergamon Press, 1973 120 Online-Ressource (DE-627)320510204 (DE-600)2013320-0 (DE-576)096806605 1879-3533 nnns volume:120 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_2008 GBV_ILN_2010 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_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 120
allfieldsGer	10.1016/j.ijmultiphaseflow.2019.103107 doi (DE-627)ELV002995123 (ELSEVIER)S0301-9322(19)30126-0 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Wu, Qing verfasserin aut Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability. CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation Li, Yikai verfasserin aut Shinjo, Junji verfasserin aut Enthalten in International journal of multiphase flow Oxford : Pergamon Press, 1973 120 Online-Ressource (DE-627)320510204 (DE-600)2013320-0 (DE-576)096806605 1879-3533 nnns volume:120 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_2008 GBV_ILN_2010 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_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 120
allfieldsSound	10.1016/j.ijmultiphaseflow.2019.103107 doi (DE-627)ELV002995123 (ELSEVIER)S0301-9322(19)30126-0 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Wu, Qing verfasserin aut Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability. CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation Li, Yikai verfasserin aut Shinjo, Junji verfasserin aut Enthalten in International journal of multiphase flow Oxford : Pergamon Press, 1973 120 Online-Ressource (DE-627)320510204 (DE-600)2013320-0 (DE-576)096806605 1879-3533 nnns volume:120 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_2008 GBV_ILN_2010 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_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 120
language	English
source	Enthalten in International journal of multiphase flow 120 volume:120
sourceStr	Enthalten in International journal of multiphase flow 120 volume:120
format_phy_str_mv	Article
bklname	Physik: Allgemeines
institution	findex.gbv.de
topic_facet	CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation
dewey-raw	530
isfreeaccess_bool	false
container_title	International journal of multiphase flow
authorswithroles_txt_mv	Wu, Qing @@aut@@ Li, Yikai @@aut@@ Shinjo, Junji @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	320510204
dewey-sort	3530
id	ELV002995123
language_de	englisch
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It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. 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author	Wu, Qing
spellingShingle	Wu, Qing ddc 530 bkl 33.00 misc CLSVOF misc Rayleigh-Taylor instability misc Nonlinear development misc Spike formation Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability
authorStr	Wu, Qing
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topic_title	530 DE-600 33.00 bkl Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability CLSVOF Rayleigh-Taylor instability Nonlinear development Spike formation
topic	ddc 530 bkl 33.00 misc CLSVOF misc Rayleigh-Taylor instability misc Nonlinear development misc Spike formation
topic_unstemmed	ddc 530 bkl 33.00 misc CLSVOF misc Rayleigh-Taylor instability misc Nonlinear development misc Spike formation
topic_browse	ddc 530 bkl 33.00 misc CLSVOF misc Rayleigh-Taylor instability misc Nonlinear development misc Spike formation
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title	Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability
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title_full	Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability
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journal	International journal of multiphase flow
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author_browse	Wu, Qing Li, Yikai Shinjo, Junji
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title_sort	detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional rayleigh-taylor instability
title_auth	Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability
abstract	Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability.
abstractGer	Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability.
abstract_unstemmed	Previous researches on the single-mode Rayleigh-Taylor (RT) instability were mainly focused on the advancing speed of gaseous bubbles, while few of them shed light on the nonlinear dynamics of the liquid spikes (jets) where the droplets are constantly generated in the liquid atomization case. In this paper, a three-dimensional (3D) numerical simulation on a single-mode RT instability (Atwood number is close to unity) with the focus on the development of the liquid spike was conducted by the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. Nonlinear dynamic characteristics of the RT instability were then analyzed thoroughly based on the detailed information of pressure and velocity fields obtained from the numerical simulation. The numerical results revealed that a local maximum pressure point, where an equilibrium was achieved between the inertial force and pressure gradient, was formed at the root of liquid spike region caused by the horizontal impinging flow. Combined with the theoretical analysis, the relationships among the steady-state characteristic parameters, the initial perturbation wavelength and the inertial acceleration were established. It is found that the velocity and width of the liquid entering the freed liquid spike at the maximum pressure point exhibit the same characteristics as those of a vertical jet emanating downward from an orifice injector under gravity. Thus, theories concerning the low-speed jet can be used to predict the disintegration behavior of a liquid spike caused by RT instability.
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title_short	Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability
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doi_str	10.1016/j.ijmultiphaseflow.2019.103107
up_date	2024-07-06T18:08:42.111Z
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Detailed nonlinear dynamics of the liquid spike development in gaseous medium caused by a three-dimensional Rayleigh-Taylor instability

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