摘要
从迎风紧致逼进［１］出发，提出求解流体力学双曲型守恒律的一种高精度的数值方法，同时采用群速度控制方法捕捉激波。该方法在光滑区具有三阶精度。
A high order accurate finite difference scheme is proposed in light of the upwind compact method .The flux vectors in Euler equations are approximated by using upwind compact difference.In order to prevent the nonphysical oscillations in the vicinity of the shock the group velocity control(GVC)method is used.The reason of oscillation production in numerical solutions is nonuniformity of group velocity of wave packets.GVC is for improvement of the shock resolution.The present scheme has third order accruracy in smooth regions.
出处
《计算物理》
CSCD
北大核心
1998年第5期21-26,共6页
Chinese Journal of Computational Physics
基金
国家自然科学基金
