High-order Discontinuous Galerkin Method for Applications to Multicomponent and Chemically Reacting Flows 
  
作者Yu Lv;  Matthias Ihme
期刊名称Acta Mechanica Sinica
2017
摘要This article focuses on the development of a discontinuous Galerkin (DG) method for simulations of multicomponent and chemically reacting flows. Compared to aerodynamic flow applications, in which DG methods have been successfully employed, DG simulations of chemically reacting flows introduce challenges that arise from flow unsteadiness, combustion, heat release, compressibility e ects, shocks, and variation in thermodynamic properties. To address these challenges, algorithms are developed, including an entropybounded DG method, an entropy-residual shock indicator, and a new formulation of arti cial viscosity. Capabilities and the performance of the resulting DG method are demonstrated in several relevant applications, including shock/bubble interaction, turbulent combustion, and detonation. It is concluded that the developed DG method shows promising performance in application to multicomponent reacting flows. The paper concludes with a discussion of further research needs to enable the application of DG methods to more complex reacting flows.
关键词Discontinuous Galerkin method;  Highorder schemes;  Reacting flows; Multicomponent flows
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