振动筛网上泥浆流动解的特征线法

The Method of Characteristic Curves for the Solution of Mud Flow on a Vivrating Screen

本文首先简要介绍了泥浆在振动筛网上流动的基本微分方程组。接着提出了解此方程组的特征线法。特征线法是把偏微分方程组变化为常微分方程组,把泥浆流动视为干扰波传播来解的方法。本文推导出了两组特征方程组并提出差分解法。

The basic partial differeatial equations for mud flow on a vibrating screen are introduced in this paper. Basic partial differeatial solution methods by characteristic curves are put forward:the method of characteristic curves and that of direct finite difference.The method of characteristic curves changes the partial differential equations into normal differential equations,taking the mud flow as transmission of interference waves.Two guoups of characteristic equations and the finite difference for solving them are presented in this paper. The finite differential equations, conditions for stability,initial and boundary conditions are also presented.