非结构网格下涡轮级三维非定常N-S方程的数值解  

UNSTRUCTURE-GRID NUMERICAL SOLUTION OF THE 3D UNSTEADY NAVIER-STOKES EQUATIONS IN A TURBINE STAGE

作　　者：王保国[1,2] 刘淑艳[1,2] 杨英俊[1,2] 张雅[1,2] 靳艳梅[1,2] 

机构地区：[1]北京理工大学机电工程学院,北京100081 [2]北京理工大学机械与车辆工程学院,北京100081

出　　处：《工程热物理学报》2004年第6期940-942,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50376004);教育部博士点基金资助项目(No.20030007028)

摘　　要：本文在非结构网格下,采用时间上二阶精度、空间上不低于二阶的高分辨率格式求解涡轮级三维流场,得到了与实验数据大体接近的N-S方程数值解。计算表明:本文所构造的双时间步迭代格式具有稳定、高效的特征。实践显示:本文用FORTRAN与C语言混合编制的N-S方程源程序,可用于涡轮级三维非定常流场计算。A high resolution scheme with two order accuracy in time and over two-order accuracy in space is presented on unstructure grids. To further prove the feasibility of this scheme, one unsteady flow in a turbine stage is also investigated. Furthermore, one unsteady channel flow is studied to demonstrate the reliability and capability of the present solution procedure for a time accurate calculation. Numerical experiments suggest that the scheme not only has a rapid convergence rate, but also can keep high-order accuracy.

关 键 词：涡轮级 非结构网格 双时间步迭代格式 N-S方程数值解 

分 类 号：O3511[理学—流体力学] O357[理学—力学]