Numerical simulation of shock wave propagation in 2-D channels with obstacles filled with chemically reacting gas suspensions

• Main Authors: Kratova Yulia, Kashkovsky Alexander, Shershnev Anton
• Format: Article
• Language: English
• Published: VINCA Institute of Nuclear Sciences 2019-01-01
• Series: Thermal Science
• Subjects: numerical simulation; gas particle mixture; shock; detonation
• Online Access: http://www.doiserbia.nb.rs/img/doi/0354-9836/2019/0354-983619623K .pdf

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.