雷诺实验的COMSOL＿Multiphysics模拟

COMSOL＿Multiphysics Simulation of Reynolds Experiment

采用κ-ε两方程湍流模型模拟雷诺实验,并利用阶跃函数控制管道入口流速。COMSOL Multiphysics软件输出由层流到湍流的流体流线图,然后通过动画的形式展现。运用COMSOL Multiphysics软件来模拟雷诺实验可以让学生更加直观地观测到实验现象。

By using k-ε two-equation turbulence model, the Reynolds experiment was simulated and the pipe inlet velocity was controlled by a step function. The fluid state from laminar flow to turbulent flow was output by COMSOL Multiphysics software in animation form. It is shown that the Reynolds experiment simulated by COMSOL Multiphysics software can make students observe the experiment phenomena directly.