摘要
本文针对多介质流体界面不稳定性问题的数值模拟,把基于波传算法的高精度WENO数值格式用于守恒和非守恒形式的流体力学方程组计算。根据不同介质界面附近压强和速度保持一致的特点,求解了γ-model和体积分数形式的耦合型方程组,并与NND和NT2的模拟结果进行比较分析,表明该方法具有高分辨率和较强的捕捉界面的能力．
In this paper, a high order accurate upwind WENO numerical scheme is applied to simulate multimaterial flows. According to pressure and velocity being continuous on both sides of interface, we solve coupled γ-based model and mass fraction model equations. Comparing the numerical results with the results by central scheme and NND scheme, unexpected physical oscillations through the contact discontinuities can be prevented effectively.
出处
《数值计算与计算机应用》
CSCD
2007年第2期81-90,共10页
Journal on Numerical Methods and Computer Applications
基金
国家自然科学基金(10576015)
国防科技重点实验室基金(51479010205HK0207)
中国工程物理研究院科学技术基金(20050649)资助项目.
