摘要
在二维线化Euler方程的基础上解决了第 3届计算气动声学专题讨论会的第 5类标准问题 :二维平行剪切层声波的产生和辐射。频散相关保持有限差分格式用于空间离散 ,低频散低耗散的龙格库塔法用于时间积分。重点使用了远场无反射边界条件。
The category 5 problem Generation and Radiation of Acoustic Waves from a 2-D Shear Layer' is solved based on the 2-D linearized Euler equation. The dispersion-relation-preserving (DRP) finite difference scheme is applied for spatial discretization and the low-dissipation and low-dispersion Runge-Kutta(LDDRK) scheme is utilized for the time integration. Special attention is paid to the implementation of the non-reflecting far-field boundary cooditions. The numerical results agree well with the analytical solutions provided by NASA GLENN research center.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2003年第1期6-9,共4页
Acta Aeronautica et Astronautica Sinica
基金
国家自然科学基金 (10 0 72 0 0 9)
