南京航空航天大学学报2011，Vol.43Issue(3)：369-374,6.
基于CFD的直升机旋翼流场及气动力计算
Computation on Flow Field and Aerodynamic Load of Helicopter Rotors Based on CFD
摘要
Abstract
A computational fluid dynamics (CFD) solver based on structured embedded grid is built to simulate the flow field of a rotor and to calculate rotor aerodynamic loads.In this solver, the three-dimensional unsteady N-S equations are employed, and discretized by the combination of the low dissipation Roe scheme and the third-order Monotonic upwind scheme for conservation law (MUSCL).The Spalart-Allmaras one-equation turbulence model is also adopted.With the developed method, the flow fields and aerodynamic loads of helicopter rotors in hover on Caradonna rotor, UH-60A rotor, and forward flight on 7A rotor and SA349/2 rotor are calculated respectively.It demonstrates that the method is very useful for improving simulation capability on the rotor flow field and thereby increasing the computation precision of rotor aerodynamic loads.关键词
直升机/Navier-Stokes方程/运动嵌套网格/旋翼流场/气动载荷Key words
helicopter/ Navier-Stokes equations/ moving embedded grids/ rotor flow field/ aerodynamic loads分类
航空航天引用本文复制引用
徐广,王博,徐国华,招启军..基于CFD的直升机旋翼流场及气动力计算[J].南京航空航天大学学报,2011,43(3):369-374,6.基金项目
国家自然科学基金(10872094)资助项目. （10872094）
