A high order semi-implicit IMEX WENO scheme for all-Mach Euler system

来源：数学科学学院发布时间：2019-07-25 585

报告人： Tao Xiong(School of Mathematical Sciences, Xiamen University)

时间：2019年7月28日上午10：00――11：00

地点：逸夫工商楼200-9

摘要：In this talk, we will propose a high order scheme for the all-Mach Euler equations. Material waves are treated explicitly, while acoustic waves are treated implicitly, thus avoiding severe CFL time step restrictions for low Mach flows. High order accuracy in space is obtained by finite difference WENO schemes, while high order in time is obtained by semi-implicit IMEX scheme with linearization treatment. The scheme is asymptotic preserving and asymptotic accurate as the Mach number vanishes. Numerical tests illustrate the effectiveness of our proposed scheme.

联系人：仲杏慧老师 zhongxh@zju.edu.cn

欢迎大家参加！