Discontinuous Galerkin solution of preconditioned Euler equations for very low Mach number flows
Discontinuous Galerkin solution of preconditioned Euler equations for very low Mach number flows
复制标题
极低马赫数流的预条件欧拉方程的不连续伽辽金解
DOI：
--
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
F. Bassi
中科院分区：
文献类型：
--
作者：
A. Nigro;C. D. Bartolo;Ralf Hartmann;F. Bassi
在这项工作中，我们提出了一种不连续Galerkin(DG)方法，旨在通过显式格式提高在很低马赫数流动下的稳态解的精度和效率。该算法基于可压缩欧拉方程的摄动形式，并采用控制方程的实例项和数值通量函数的耗散项的预条件(完全预条件方法)。
In this work we present a discontinuous Galerkin (DG) method designed to improve the accuracy and efficiency of the steady‐state solution at very low Mach number flows using an explicit scheme. The algorithm is based on a perturbed formulation of the compressible Euler equations and employs the preconditioning of both the instationary term of the governing equations and the dissipative term of the numerical flux function (full preconditioning approach).