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Modal discontinuous Galerkin method for shock wave structures
- Authors
- Le, Phuong N.T.; Myong, R.S.
- Issue Date
- Sep-2013
- Keywords
- Discontinuous Galerkin (DG); Nonlinear coupled constitutive relations; Shock structure
- Citation
- Transactions of Nanjing University of Aeronautics and Astronautics, v.30, no.3, pp 252 - 256
- Pages
- 5
- Indexed
- SCOPUS
- Journal Title
- Transactions of Nanjing University of Aeronautics and Astronautics
- Volume
- 30
- Number
- 3
- Start Page
- 252
- End Page
- 256
- ISSN
- 1005-1120
- Abstract
- The discontinuous Galerkin (DG) finite element method has been popular as a numerical technique for solving the conservation laws. In the present study, in order to investigate the shock wave structures in highly thermal nonequilibrium, an explicit modal cell-based DG scheme is developed for solving the conservation laws in conjunction with nonlinear coupled constitutive relations (NCCR). Convergent iterative methods for solving algebraic constitutive relations are also implemented in the DG scheme. It is shown that the new scheme works well for all Mach numbers, for example, Ma=15.
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