基于QUICK格式的方腔驱动流数值分析

The Numerical Simulation of Driven Cavity Flow based on the QUICK

二维方腔驱动流模型是典型的不可压缩黏性流体模型,常用来检验各种数值算法的有效性。延迟修正QUICK格式是在一阶迎风差分格式的基础上引入附加源项,应用有限体积法对方腔驱动流模型的连续性方程和动量方程进行离散计算,该方法容易实现,且编程工作量较小。模拟结果表明,随着雷诺数的增加方腔内的速度涡流逐渐靠近方腔中心,这与Fluent仿真的解析结果相吻合。

The two-dimensional square cavity driven flow model is a typical model of incompressible viscous fluid, used to test the effectiveness of various numerical algorithm commonly. Delay correction QUICK format is the wind in one order difference format introduced additional source term, on the basis of the fi- nite volume method each other driven cavity flow continuity equation and momentum equation of discrete calculation model, the method is easy to implement, and programming workload is small. Simulation results show that with the increase of Reynolds number square cavity vortex near the center of the cavity gradually, the speed of the Fluent simulation analytical solution.