LES of Compressible Turbulent Channel Flows

摘要：

Large eddy simulation (LES) of fully developed, compressible turbulent channel flows is performed in the present paper. The turbulent statistics agree well with those from other direct numerical simulation (DNS) results, indicating that the LES method established in the present paper is reliable. Through the analysis of the turbulent fluctuations, the Morkovins hypothesis is basically validated, and consequently the dominant compressibility effect is that due to mean property variations. When properly scaled, the turbulence statistics such as mean steamwise velocity, root-mean-square (RMS) velocity fluctuations are found to agree well with the incompressible DNS results.

关键词： large eddy simulation channel flow compressibility effect subgrid-scale model

作者: S. Z. Wang C. H. Lee

作者单位: School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

会议类型: 国际会议

会议名称: 第六届流体力学国际会议

会议地点: 广州

会议语种:英文

页码: 75-77

在线出版日期: 2011-06-30（万方平台首次上网日期，不代表论文的发表时间）