摘要
本文采用时间相关法求解了三维完全NS方程。在算法中 ,对于对流项采用了修正的Osh er Chakravarthy的TVD格式 ,对于粘性项采用中心差分格式。在计算中采用了Baldwin Lomax湍流模型。通过数值仿真得到了攻角为 5°时钝头锥柱体高超声速绕流与横向喷流干扰流场的数值解 ,并将对称面上迎风壁面处压力分布计算值与实验值进行了比较。计算中还采用了多重网格方法 。
Time dependent numerical method is used to solve the three dimensional Navier Stokes equations. In the numerical procedure, Chakravarthy Osher TVD scheme is used for the convective terms and central difference scheme for viscous terms, and the Baldwin Lomax turbulence model is used. Numerical solution of the hypersonic flow over a blunt conic body with cross jet at 5° attack angle was obtained. The numerical results of pressure were compared with the experimental data. And the multigrid method is also used to accelerate the convergence.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2002年第3期344-346,共3页
Acta Armamentarii
基金
国家自然科学基金资助项目 (19482 0 0 2 )
