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检索条件"主题词=shear flows"
4 条 记 录,以下是1-10 订阅
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ON THE EDDY VISCOSITY MODEL OF PERIODIC TURBULENT shear flows
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Acta Mechanica Sinica 2003年 第5期19卷 470-475页
作者: 王新军 罗纪生 周恒 Department of Mechanics Tianjin University Tianjin 300072 China
Physical argument shows that eddy viscosity is essentially different from molecular viscosity. By direct numerical simulation, it was shown that for periodic turbulent flows, there is phase difference between Reynolds... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Experimental Study on Transitional Flow in a Circular Microtube
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Chinese Physics Letters 2006年 第10期23卷 2815-2818页
作者: 郝鹏飞 姚朝晖 何枫 朱克勤 Department of Engineering Mechanics Tsinghua University Beijing 100084
We investigate the characteristics of the transition from laminar to turbulent flow in the microtube with a diameter of 310μm. The microscopic particle image velocimetry is used to measure the water flow at Re =1600-... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Diffusion and mixing in fluid flow via the resolvent estimate
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Science China Mathematics 2021年 第3期64卷 507-518页
作者: Dongyi Wei School of Mathematical Sciences Peking UniversityBeijing 100871China Beijing International Center for Mathematical Research Peking UniversityBeijing 100871China
In this paper, we first present a Gearhart-Pruss type theorem with a sharp bound for m-accretive operators. Then we give two applications:(1) we give a simple proof of the result proved by Constantin et al. on relaxat... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
A Unified Instability Region for the Extended Taylor-Goldstein Problem of Hydrodynamic Stability
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Advances in Applied Mathematics and Mechanics 2017年 第6期9卷 1404-1419页
作者: S.Sridevi Huashu Dou V.Ganesh Research and Development Centre Bharathiyar UniversityCoimbatore-641046India Faculty of Mechanical Engineering and Automation Zhejiang Sci-Tech UniversityHangzhouZhejiang 310018China Department of Mathematics Rajiv Gandhi College of Engineering and TechnologyKirumampakkamPuducherry-607402India
We consider inviscid,incompressible shear flows with variable density and variable cross *** this problem,we derived a new estimate for the growth rate of an unstable mode and a parabolic instability region which inte... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论