南京航空航天大学学报2012，Vol.44Issue(1)：56-60,5.
基于SNGR方法的二维空腔噪声数值模拟
Numerical Simulation of Two-Dimensional Cavity Noise by SNGR Method
陈荣钱 1伍贻兆 1夏健1
作者信息
- 1. 南京航空航天大学航空宇航学院,南京,210016
- 折叠
摘要
Abstract
Linearized Euler equations with the source terms are solved by finite difference method based on the SNGR method. The spatial discretization is conducted by the dispersion-relation-preserving (DRP) scheme. The time integration is implemented by low-dissipation and low-dispersion Rung-Kutta schemes. The non-reflecting far-field boundary conditions are utilized. The noise of the two-dimensional cavity with length to depth ratio 9 : 1 is predicted at different Mach numbers under the subsonic, transonic and supersonic conditions, and the results agree with the experimental data.关键词
计算气动声学/线化欧拉方程/有限差分法/空腔/随机模型Key words
computational aeroacoustics/ linearized Euler equations/ finite difference method/ cavity/ stochastic model分类
航空航天引用本文复制引用
陈荣钱,伍贻兆,夏健..基于SNGR方法的二维空腔噪声数值模拟[J].南京航空航天大学学报,2012,44(1):56-60,5.
