Stagnation-point flow under free-stream turbulence
期刊名称： Journal of Fluid Mechanics
作者： XIONG, ZHONGMIN,LELE, SANJIVA K.
年份： 2007年
流氓插件>倒置
关键词： Bibliography, Theoretical or Mathematical/ flow simulation; heat
上海人在东京>毕业设计英文transfer; turbulence; vortices/ stagnation-point flow; free-stream turbulence;
螃蟹怎么炒
heat transfer; large eddy simulation; homogeneous isotropic turbulence;
isothermal elliptical leading edge; turbulent mean flow; Reynolds stress代谢酶
profiles; stagnation streamline; turbulence anisotropy; mean flow strain; velocity pressure gradient correlation; quasistreamwi vortices; thermal fluxes;
momentum transfer; eddy viscosity/ A4725C Isotropic turbulence A4725Q
东坡诗文
花生的英语
Convection and heat transfer A4730 Rotational flow, vortices, buoyancy and other flows involving body forces A4710 General fluid dynamics theory,
simulation and other computational methods
摘要：In this paper, the effects of free-stream turbulence on stagnation-point flow and heat transfer are investigated through large eddy simulation (LES) of homogeneous isotropic turbulence impinging upon an isothermal elliptical leading edge. Turbulent mean flow and Reynolds stress profiles along the stagnation streamline, where the mean flow is strain dominant, and at different downstream locations, where the mean flow gradually becomes shear-dominated, are ud to characterize evolution of the free-stream turbulence. The Reynolds stress budgets are also obtained, and the turbulence anisotropy is analyd through the balance between the mean flow strain and the velocity pressure gradient correlation. In the prence of free-stream turbulence, inten quasi-streamwi vortices develop near the leading edge with a typical diameter
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