The Preconditioning of Chemical Sources Terms in Equations with Diffusion, Convection and Chemical Kinetics

The reasons of singularity have been considered for finite-differences equations of multi-components hydrodynamics of chemically active gas. To prevent the equations singularity, the preconditioning method is developed. The method is adjusted for modeling of one-dimension gas mixture combustion in t...

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Bibliographic Details
Published in:Mathematical models and computer simulations 2019-11, Vol.11 (6), p.1052-1058
Main Author: Petrusev, A. S.
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Convection
Fast chemical reactions
Fluid flow
Gas mixtures
Hydrodynamics
Mathematical Modeling and Industrial Mathematics
Mathematics
Mathematics and Statistics
Preconditioning
Reaction kinetics
Simulation and Modeling
Singularity (mathematics)
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Summary:The reasons of singularity have been considered for finite-differences equations of multi-components hydrodynamics of chemically active gas. To prevent the equations singularity, the preconditioning method is developed. The method is adjusted for modeling of one-dimension gas mixture combustion in the case of extremely fast chemical reactions present.
ISSN:2070-0482
2070-0490
DOI:10.1134/S2070048219060176