NUMERICAL SOLUTIONS OF THE DIFFUSION PARABOLIZED NAVIER-STOKES EQUATIONS
-
摘要: 20世纪60年代末期在边界层理论基础上发展起来的各种简化Navier-Stokes (N-S)方程(统称为扩散抛物化N-S方程)及其算法, 较为彻底地解决了无黏流及黏流的相互干扰问题, 并为高雷诺数大型复杂黏性流场的数值模拟开辟了新的途径. 本文将系统地评述这一领域的主要成果, 包括各种简化N-S模型的优缺点; 数学奇性及正则化方法; 代表性的数值解法以及最近几年的新进展.Abstract: In the late 1960's the different-type simplifiedNavier-Stokes models, or as are generally called, the diffusionparabolized N-S (DPNS) equations,and their computational methods developed from the Prandtl's boundary-layertheory have correctly included the viscous-inviscid flow interacting mechanismand opened a new approach for simulating large-scale complex flowfields. Thispaper reviews the related main results of this field, includingadvantages and drawbacks of different simplified Navier-Stokes models;mathematical characteristics and their marching regularization procedures of theDPNS equations; various representative numerical solutions and theapplicability of the DPNS equations and finally the new generalized DPNSequations.
点击查看大图
计量
- 文章访问数: 2191
- HTML全文浏览量: 113
- PDF下载量: 936
- 被引次数: 0