Research on attenuation law of turbulent kinetic energy in uniform flow based on two-equation turbulence model

doi:10.19912/j.0254-0096.tynxb.2020-0829

	Research on attenuation law of turbulent kinetic energy in uniform flow based on two-equation turbulence model
	Li, Deshun1,2,3 ; Ma, Guolin 1; Guo, Tao 1; Xu, Quan 1
	2022-04-28
发表期刊	Taiyangneng Xuebao/Acta Energiae Solaris Sinica
ISSN	0254-0096
卷号	43 期号:4 页码:418-427
摘要	Through theoretical derivation and numerical simulation, the attenuation law of turbulence kinetic energy and the essential physical difference among the standard k-ω model, the standard k-ω model and the SST k-ω turbulence model are analyzed from the determination process of the closure coefficients of the turbulence model, the influencing factors of the diffusion term of the transport equation, the inlet boundary conditions, the grid size and so on, the attenuation law of turbulence kinetic energy under neutral atmospheric conditions is analyzed by numerical simulation. The results show that in uniform flow, when the standard k-ω turbulence model is used and the inlet turbulence intensity is relatively small or the eddy viscosity is relatively large, the attenuation of turbulence kinetic energy is higher than that of the standard k-ω model and the SST k-ω model, under neutral atmospheric conditions, when the SST k-ω turbulence model is used and the pressure outlet condition is used as the top boundary, the velocity, turbulent kinetic energy, and specific dissipation rate profiles are better maintained. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
关键词	Atmospheric boundary layer Atmospheric thermodynamics Atmospheric turbulence Kinetic energy Kinetics Numerical models Turbulence models Wind turbines Atmospheric conditions Attenuation law Energy attenuation Flow based Theoretical derivations Turbulence kinetic energy Turbulence kinetic energy attenuation Turbulent kinetic energy Two-equation turbulence models Uniform flow
DOI	10.19912/j.0254-0096.tynxb.2020-0829
收录类别	EI
语种	中文
出版者	Science Press
EI入藏号	20222012116004
EI主题词	Boundary conditions
EI分类号	443.1 Atmospheric Properties ; 615.8 Wind Power (Before 1993, use code 611 ) ; 631.1 Fluid Flow, General ; 641.1 Thermodynamics ; 921 Mathematics ; 931 Classical Physics ; Quantum Theory ; Relativity
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158496
专题	能源与动力工程学院
作者单位	1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Gansu Provincial Technology Centre for Wind Turbines, Lanzhou; 730050, China; 3.Key Laboratory of Fluid Machinery and Systems of Gansu Province, Lanzhou; 730050, China
第一作者单位	新能源学院
第一作者的第一单位	新能源学院
推荐引用方式 GB/T 7714	Li, Deshun,Ma, Guolin,Guo, Tao,et al. Research on attenuation law of turbulent kinetic energy in uniform flow based on two-equation turbulence model[J]. Taiyangneng Xuebao/Acta Energiae Solaris Sinica,2022,43(4):418-427.
APA	Li, Deshun,Ma, Guolin,Guo, Tao,&Xu, Quan.(2022).Research on attenuation law of turbulent kinetic energy in uniform flow based on two-equation turbulence model.Taiyangneng Xuebao/Acta Energiae Solaris Sinica,43(4),418-427.
MLA	Li, Deshun,et al."Research on attenuation law of turbulent kinetic energy in uniform flow based on two-equation turbulence model".Taiyangneng Xuebao/Acta Energiae Solaris Sinica 43.4(2022):418-427.