THERMAL SCIENCE

International Scientific Journal

Yulia Kratova

,

Alexander Kashkovsky

,

Anton Shershnev

NUMERICAL SIMULATION OF SHOCK WAVE PROPAGATION IN 2-D CHANNELS WITH OBSTACLES FILLED WITH CHEMICALLY REACTING GAS SUSPENSIONS

ABSTRACT
Modification of the serial Fortran code for solving unsteady 2-D Euler equations for the mixture of compressible gas and polydisperse particles was carried out using OpenMP technology. Modified code was verified and parallel speed-up was measured. Analysis showed that the data on parallel efficiency is in a good agreement with the Amdahls law, which gives the estimate for serial code fraction about 30%. Parallel code was used for the numerical simulation of two test-cases, namely shock wave propagation in 2-D channel with obstacles filled with reactive Al-O2 gas particle mixture and heterogeneous detonation propagation in polydisperse suspensions. For the first test-case the data on particles distribution in the flow was obtained, the existense of particle free zones inside the vortices was demonstrated and the attenuation of a shock wave was studied. In the second test, numerical simulation of detonation shock wave propagation in plain 2-D channel for the three polydisperse mixtures was carried out and data on detonation regimes was also obtained.
KEYWORDS
numerical simulation, gas particle mixture, shock, detonation
PAPER SUBMITTED: 2018-09-14
PAPER REVISED: 2018-11-10
PAPER ACCEPTED: 2018-11-30
PUBLISHED ONLINE: 2019-05-05
DOI REFERENCE: https://doi.org/10.2298/TSCI19S2623K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Supplement 2, PAGES [S623 - S630]
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Numerical simulation of shock wave propagation in 2-D channels with obstacles filled with chemically reacting gas suspensions

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence