Numerical simulation of flow around square cylinder using different low-Reynolds number turbulence models

来源期刊：中南大学学报(英文版)2008年第4期

论文作者：张泠 周军莉 陈晓春 兰丽 张楠

文章页码：564 - 568

Key words：low-Reynolds number turbulence model; flow around square cylinder; numerical simulation

Abstract: ABE-KONDOH-NAGANO, ABID, YANG-SHIH and LAUNDER-SHARMA low-Reynolds number turbulence models were applied to simulating unsteady turbulence flow around a square cylinder in different phases flow field and time-averaged unsteady flow field. Meanwhile, drag and lift coefficients of the four different low-Reynolds number turbulence models were analyzed. The simulated results of YANG-SHIH model are close to the large eddy simulation results and experimental results, and they are significantly better than those of ABE-KONDOH-NAGANO, ABID and LAUNDER-SHARMR models. The modification of the generation of turbulence kinetic energy is the key factor to a successful simulation for YANG-SHIH model, while the correction of the turbulence near the wall has minor influence on the simulation results. For ABE-KONDOH-NAGANO, ABID and LAUNDER-SHARMA models satisfactory simulation results cannot be obtained due to lack of the modification of the generation of turbulence kinetic energy. With the joint force of wall function and the turbulence models with the adoption of corrected swirl stream, flow around a square cylinder can be fully simulated with less grids by the near-wall.

基金信息：the National Science and Technology Pillar Program in the Eleventh Five-year Plan Period
the National High Technology Research and Development Program of China
Hunan Science and Technology Office