摘要
针对Ｃｈａｋｒａｖａｒｔｈｙ－ＯｓｈｅｒＴＶＤ格式，提出了一种处理声速点的方法，可使声速点和非声速点的计算统一起来。两个含有声速点的激波管算例表明了此方法的可行性。在此基础上发展的求解二维欧拉方程组的计算程序对圆柱绕流进行了计算，得出比较好的结果。
For the Chakravarthy Osher TVD scheme,we put forward a new method of avoiding the occurrence of the singular point near sonic region.By means of the present method,we no longer have to redefine the positive and negative eigenvalues at the soic point,and at the same time the high accuracy of the Chakravarthy Osher TVD scheme still remains.The calculations of two shock tubes show that the method is effective.In addition,we also make use of this method to calculate the subsonic flow past a circular cylinder,and obtain satisfactory results.
出处
《空气动力学学报》
CSCD
北大核心
1998年第3期358-362,共5页
Acta Aerodynamica Sinica
