PIV Investigation of Complex Eddy ViscosityModel Based on Reynolds Stress-Strain Spatial-Phase Lag for Low-Speed Axial Fan

摘要：

An experimental study is presented to investigate the predictive performance of a complex eddy viscosity model (EVM) based on Reynolds stress-strain spatial-phase lag in simulating the flow physics pertinent to a low-speed forward-swept axial fanusing time-resolved particle image velocimetry (TRPIV). The data is processed to yield the time evolution of velocities, Reynolds stresses and strain rates by use of the spatial phase-averaged method. The spatial-phase lag relationship between Reynolds stresses and mean rates-of-strain is found, so the studied complex EVM will be considered as a promising closure for improving the state-of-the-art of industrial computational fluid dynamics (CFD) by accounting for non-equilibrium effects.

关键词： axial fan blade Reynolds stress rate-of-strain complex eddy viscosity model

作者: Y. X. Jia N. Jiang

作者单位: Dept. of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China Dept. Of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China Tian

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: 430-432

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）