大密度比两流体系统计算的一种改进模式

Modified mode for computation of two-fluid system with a large density rate

对动量方程进行了一些变换,把密度方程和动量方程统一为一个积分方程,提出了一种新的处理大密度比两流体系统的方法.数值模拟结果表明,该方法可有效地避免两方程的耦合问题以及单独求解密度方程带来的一些不合理现象,可用于含大密度比的两流体问题的数值模拟和分析.

The equations for density and momentum were unified as an integral style by transforming the momentum equation. A new method for the two-fluid system with a large density rate was put forward. The numerical tests show that the proposed method can effectively solve coupling problems of two equations and avoid illogical phenomena in solely handling the density equation. It is suitable for the numerical simulation and analysis of the two-fluid system with a large density rate.