Entropy and its application in turbulence modeling

	Entropy and its application in turbulence modeling
	Zhao R(赵瑞); Rong JL; Li XL(李新亮); Zhao, R (reprint author), Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China.
发表期刊	CHINESE SCIENCE BULLETIN
	2014-11
卷号	59 期号:31 页码:4137-4141
ISSN	1001-6538
摘要	The entropy concept was introduced into the turbulence modeling strategy in the present work. First, the turbulent boundary-layer was described from the point of energy dissipation. Based on the theoretical analysis and direct numerical simulations, the relationship between the entropy increment and viscosity dissipation was systematically investigated. Then, an entropy function f (s) was proposed to distinguish the turbulent boundary-layer from the external flow. This function is universal, independent of the inflow conditions or any specific turbulence model. With this function, a new version of delayed-detached-eddy simulation method SDES was constructed and verified with the supersonic boundary-layer flow and the cavity-ramped flow. Initial results showed that this method could successfully avoid the modeled stress depletion problem inherited from the original DES method.
关键词	Entropy Turbulence Boundary-layer Turbulence Modeling Rans/les Hybrid Method
学科领域	Science & Technology - Other Topics
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000342421100024
项目资助者	This work was supported by the National Basic Research Program of China (2009CB724104) and Civil Aerospace Technology Advanced Research Project. The authors are grateful for Dr. Wu Peng in Belgium for critical reading of this manuscript.
课题组名称	LHD可压缩湍流
论文分区	二类
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49325
专题	高温气体动力学国家重点实验室
通讯作者	Zhao, R (reprint author), Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China.
推荐引用方式 GB/T 7714	Zhao R,Rong JL,Li XL,et al. Entropy and its application in turbulence modeling[J]. CHINESE SCIENCE BULLETIN,2014,59,31,:4137-4141.
APA	Zhao R,Rong JL,Li XL,&Zhao, R .(2014).Entropy and its application in turbulence modeling.CHINESE SCIENCE BULLETIN,59(31),4137-4141.
MLA	Zhao R,et al."Entropy and its application in turbulence modeling".CHINESE SCIENCE BULLETIN 59.31(2014):4137-4141.

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