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Published in: Mathematical Models and Computer Simulations 3/2023

01-06-2023

Test Problems of Gas Suspension Dynamics Using Asymptotically Exact Solutions

Author: D. V. Sadin

Published in: Mathematical Models and Computer Simulations | Issue 3/2023

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Abstract

Asymptotically exact solutions of Riemann problems are constructed under the assumption of small scales of dynamic and thermal relaxations of a gas-dispersed mixture. Depending on the parameters of the gas suspension’s states on different sides of the initial arbitrary discontinuities, configurations with two shock waves, a rarefaction wave and a shock wave, as well as two rarefaction waves are formed. For these benchmarks, the computational properties of the balanced algorithm of a hybrid large-particle method, suitable for solving stiff problems, are tested. The features of nonequilibrium wave flows of a gas suspension and the convergence of numerical solutions to asymptotically exact solutions with decreasing particle size of the gas suspension are studied.

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Metadata
Title
Test Problems of Gas Suspension Dynamics Using Asymptotically Exact Solutions
Author
D. V. Sadin
Publication date
01-06-2023
Publisher
Pleiades Publishing
Published in
Mathematical Models and Computer Simulations / Issue 3/2023
Print ISSN: 2070-0482
Electronic ISSN: 2070-0490
DOI
https://doi.org/10.1134/S2070048223030158

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