摘要
采用非结构网格上的SIMPLE(Semi-implicit Method for Pressure-linked Equations)算法、k-ε湍流模型求解了三维不可压Navier-stokes方程,对低速不可压粘性流场进行数值模拟,在求解压强方程时采用共轭梯度方法,求解其它变量方程时,采用预处理的BICG(biconjugate gradients)算法。对NACA0012翼型绕流流场和飞艇绕流流场进行数值模拟并对结果进行分析,取得较好的结果。
SIMPLE （ Semi- implicit Method for Pressure- linked Equations） method and turbulent model are utilized to solve 3 D uneompressible Navier- stokes equation. Low speed uneompressible viseid flow fields are numerieally simulated. When solving pressure equation, eonjugate gradient algorithm is used. Preeonditioned BICG （ bieonjugate gradients） algorithm is adopted to solve other variables equations. NACA0012 airfoil and airship fluid fields are eomputed and the results are analyzed. Good numerieal results are aehieved.
出处
《航空计算技术》
2008年第4期37-40,共4页
Aeronautical Computing Technique
