计算力学学报2011，Vol.28Issue(5)：749-753,765,6.
基于DES的高雷诺数空腔噪声数值模拟
High reynolds number cavity acoustic numerical simulation using DES
陈龙 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
The three dimensional supersonic cavity numerical simulation method and program using SA- DES, SST-DES are developed. Hybrid grid finite volume method is used to solve unsteady flow fields, and the dual time stepping method based on LU-SGS implicit scheme is used in temporal discretization. Wall function including compressibility is used for reduce the viscous grid points number near wall boundary when high Reynolds number numerical simulation. The result about vorticity and pressure fluctuating using one-equation SA-DES and two-equations SST-DES are compared. Analyze the pressure fluctuating and sound pressure level spectra from numerical simulation. Sound pressure level spectra from numerical simulation is agree well with other researcher＇s result and experimental data.关键词
计算流体力学/非定常/空腔/DES高雷诺数Key words
CFD/unsteady/cavity/DES/high Reynolds number分类
航空航天引用本文复制引用
陈龙,伍贻兆,夏健..基于DES的高雷诺数空腔噪声数值模拟[J].计算力学学报,2011,28(5):749-753,765,6.
