Courant Number and Mach Number Insensitive Ce/Se Euler Solvers
Courant Number and Mach Number Insensitive Ce/Se Euler Solvers
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DOI：
10.2514/6.2005-4355
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发表时间：
2013-07
期刊：
影响因子：
--
通讯作者：
Sin-Chung Chang
中科院分区：
文献类型：
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作者：
Sin-Chung Chang
已知，时空CE/SE方法可以得到马赫数为0：0028~10的一维、二维和三维定常和非定常欧式解。然而，也知道当马赫数很小时，CE/SE解可能会变得过度耗散。作为弥补这一缺陷的初步尝试，新的一维Courant数和马赫数不敏感的CE/SE Euler求解器是使用最近成功开发的Courant数不敏感的CE/SE方案的几个关键概念开发的。数值结果表明，新的求解器能够精确地求解最大马赫数为0：01的接触不连续问题。
It has been known that the space-time CE/SE method can be used to obtain 1D, 2D, and 3D steady and unsteady o w solution with Mach number ranging from 0:0028 to 10. However, it is also known that a CE/SE solution may become overly dissipative when Mach number is very small. As an initial attempt to remedy this weakness, new 1D Courant number and Mach number insensitive CE/SE Euler solvers are developed using several key concepts underlying the recent successful development of Courant number insensitive CE/SE schemes. Numerical results indicate that the new solvers are capable of resolving crisply a contact discontinuity embeded in a o w with the maxmum Mach number = 0:01.