中文摘要：

文章在BN模型基础上,提出了一个描述可压缩多介质流体的介质界面的修正模型,并且给出了该模型的具有二阶精度的Lax-Wendroff格式。无论模型和格式,都保证了总质量和分质量守恒、总动量和总能量守恒。更重要的是它消除了速度和压力在介质界面处的伪振荡,数值算例表明这一算法是有效的。

英文摘要：

This paper proposes a modified Baer-Nunziato model and its Lax-Wendroff scheme with the second order accuracy for the simulation of material interface of different compressible multifluid flow. Both the model and the scheme fully guarantee the total and individual mass conservation as well as the total momentum and total energy conservation. And the spurious oscillation of velocity and pressure across the material interface is eliminated. Numerical examples verify the effectiveness of the algorithm.