Study of Numerical Methods About the Unsteady Impinging Process of Airstream and Induced Dynamic Load

摘要：

　　This study is aimed at the difficult problem of numerical methods solving the unsteady impinging process of airstream and accompanying dynamic load.A high efficiency high time-accuracy hybrid-flux-splitting implicit iteration unsteady computational method is developed,which meets the requirement of accuracy and efficiency in the simulation of instantaneous impingement.An engineering applicable RANS/LES hybrid model and algorithm based on both the grid zoning and the turbulence scale is devised,which promotes the prediction accuracy of dynamic load induced by turbulent separation.Numerical software about the unsteady impinging process of airstream and induced dynamic load based on the algorithms devised is built up,and applied successfully on typical aerodynamic impinging problems.

关键词： Unsteady flow Impinging problem Dynamic load Numerical simulation

作者: Yufei Xie Xianxu Yuan Qi Chen Lin Bi Jianqiang Chen

作者单位: State Key Laboratory of Aerodynamics, Mianyang Sichuan 621000, PRC China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, PRC

会议类型: 国际会议

会议名称: The 8th International Conference of Computational Fluid Dynamics, (ICCFD8)(第八届国际计算流体力学会议)

会议地点: 成都

会议语种:英文

页码: 1-9

在线出版日期: 2014-07-25（万方平台首次上网日期，不代表论文的发表时间）