Comparison of Riemann Solutions for Non-isentropic Modified and Pure Chaplygin Gas Dynamics  

作　　者：Wen-jia WU Li WANG 

机构地区：[1]Department of Arts and Sciences,Shanghai Dianji University,Shanghai 201306,China

出　　处：《Acta Mathematicae Applicatae Sinica》2023年第3期733-751,共19页应用数学学报（英文版）

基　　金：Academic Discipline Project of Shanghai Dianji University(Grant No.16JCXK02)。

摘　　要：In this paper,we investigate the Riemann solutions of the non-isentropic Euler equations for the modified Chaplygin gas and the pure Chaplygin gas,which are the set of all rarefaction waves,shock waves,contact discontinuity andδ-shock waves.Under some appropriate conditions,by studing the limiting behavior,we find that the Riemann solutions of modified Chaplygin gas is the same as pure Chaplygin gas including theδ-shock waves.

关 键 词：modified Chaplygin gas δ-shock waves Riemann problem generalized Rankine-Hugoniot conditions 

分 类 号：O354[理学—流体力学]