Development of a new solver for homogenous mixture based on regularized gas dynamic equation system

The paper presents an improved approach for modeling multicomponent gas mixtures based on quasi‐gasdynamic equations. The proposed numerical algorithm is implemented as a reactingQGDFoam solver based on the open‐source OpenFOAM platform. The following problems have been considered for validation: th...

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Bibliographic Details
Published in:International journal for numerical methods in fluids 2025-01, Vol.97 (1), p.1-19
Main Authors: Epikhin, Andrey, But, Ivan
Format: Article
Language:English
Subjects:
Algorithms
Backward facing steps
Cauchy problems
compressible flows
Exact solutions
Gas mixtures
Jet flow
jets
Mathematical analysis
Mathematical models
multicomponent gases
Numerical analysis
OpenFOAM
quasi‐gas dynamic equations
Shock waves
Solvers
Citations: Items that this one cites
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Summary:The paper presents an improved approach for modeling multicomponent gas mixtures based on quasi‐gasdynamic equations. The proposed numerical algorithm is implemented as a reactingQGDFoam solver based on the open‐source OpenFOAM platform. The following problems have been considered for validation: the Riemann problems, the backward facing step problem, the interaction of a shock wave with a heavy and a light gas bubble, the unsteady underexpanded hydrogen jet flow in an air. The stability and convergence parameters of the proposed numerical algorithm are determined. The simulation results are found to be in agreement with analytical solutions and experimental data. The paper presents an improved approach for modelling multi‐component gas mixtures based on quasi‐gasdynamic equations. The proposed numerical algorithm is implemented as a reactingQGDFoam solver based on the open‐source OpenFOAM platform. This solver has been extensively validated and verified through a variety of well‐described test problems. The stability and convergence parameters of the proposed numerical algorithm are determined. The simulation results are found to be in agreement with analytical solutions and experimental data.
ISSN:0271-2091
1097-0363
DOI:10.1002/fld.5333