带运动顶盖的封闭方腔内湍流流场的计算  

A CALCULATION OF TURBULENT LID-DRIVEN CAVITY FLOW

作　　者：沈浩[1] 范维澄[1] 

机构地区：[1]中国科技大学工程热物理系

出　　处：《空气动力学学报》1989年第1期140-145,共6页Acta Aerodynamica Sinica

摘　　要：本文运用κ-ε模型求解了带运动顶盖的封闭方腔内的二维湍流流场,其流动雷诺数为10000,对乘方定律格式(PLDS)和二次上风差分格式(QUICK)进行了比较,采用了PISO求解方法、截面连续性修正并对k、ε方程的源项作特殊处理,使计算的收敛性和稳定性明显提高。计算出的主涡、二次涡位置及流场速度分布值与实验吻合良好。计算所用网格为12×12,在Honeywell DPS 8/49计算机上运行的CPU时间对PLDS与QUICK分别为1.9分和1.8分。A two dimensional turbulent lid-driven cavity flow which Reynolds number is 10,000 is calculated with k-ε model. Two kinds of finite different schemes (PLDS and QUICK) are compared. The PISO method, cross section continuity correction and a special treatment of the source terms of k and ε equitions are used to improve the convergence and stability of the calculation. The calculated positions of the main and secondary vortices and the velocity distributions agree with experiment data fairly well. The grid to be used is 12×12. The CPU time for PLDS and QUICK is 1.9 min. and 1.8 min. respectively on the Honeywell DPS 8/49 computer.

关 键 词：湍流 粘性 流场 封闭方腔 

分 类 号：V211.11[航空宇航科学与技术—航空宇航推进理论与工程]