Constrained Large-Eddy Simulation of Compressible Flow Past a Circular Cylinder
作者机构：State Key Laboratory for Turbulence and Complex SystemsCollege of EngineeringPeking UniversityBeijing 100871P.R.China. Center for Applied Physics and TechnologyCollege of EngineeringPeking UniversityBeijing 100871P.R.China
出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)
年 卷 期：2014年第15卷第2期
页 面：388-421页
核心收录：
学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0704[理学-天文学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）]
基 金：support from National Natural Science Foundation of China(Grants No.91130001 and No.11221061) supported by the National Basic Research Program of China(Grant No.2009CB724101) support from National Science Foundation for Postdoctoral Scientists of China(Grant No.2012M520109)
主 题：Compressible flow constrained large-eddy simulation circular cylinder separated flow.
摘 要：Compressible flow past a circular cylinder at an inflow Reynolds number of 2×105 is numerically investigated by using a constrained large-eddy simulation(CLES)*** simulation with adiabatic wall boundary condition and at a free-stream Mach number of 0.75 is conducted to validate and verify the performance of the present CLES method in predicting separated *** typical and characteristic physical quantities,such as the drag coefficient,the root-mean-square lift fluctuations,the Strouhal number,the pressure and skin friction distributions around the cylinder,*** calculated and compared with previously reported experimental data,finer-grid large-eddy simulation(LES)data and those obtained in the present LES and detached-eddy simulation(DES)on coarse *** turns out that CLES is superior to DES in predicting such separated flow and that CLES can mimic the intricate shock wave dynamics quite ***,the effects of Mach number on the flow patterns and parameters such as the pressure,skin friction and drag coefficients,and the cylinder surface temperature are studied,with Mach number varying from 0.1 to *** behaviors of the pressure and skin friction distributions are observed with increasing Mach number and the minimum mean separation angle occurs at a subcritical Mach number of between 0.3 and ***,the wall temperature effects on the thermodynamic and aerodynamic quantities are explored in a series of simulations using isothermal wall boundary conditions at three different wall *** is found that the flow separates earlier from the cylinder surface with a longer recirculation length in the wake and a higher pressure coefficient at the rear stagnation point for higher wall ***,the influences of different thermal wall boundary conditions on the flow field are gradually magnified from the front stagnation point to the rear stagnation *** is inferred that the CLES approach in its current
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