Interaction of shock waves with discrete gas inhomogeneities: A smoothed particle hydrodynamics approach

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Colleges, School and Institutes

Abstract

In this study, we propose a smoothed particle hydrodynamics model for simulating a shock wave interacting with cylindrical gas inhomogeneities inside a shock tube. When the gas inhomogeneity interacts with the shock wave, it assumes different shapes depending on the difference in densities between the gas inhomogeneity and the external gas. The model uses a piecewise smoothing length approach and is validated by comparing the results obtained with experimental and CFD data available in the literature. In all the cases considered, the evolution of the inhomogeneity is similar to the experimental shadowgraphs and is at least as accurate as the CFD results in terms of timescale and shape of the gas inhomogeneity.

Details

Original languageEnglish
Article number5435
JournalApplied Sciences (Switzerland)
Volume9
Issue number24
Publication statusPublished - 1 Dec 2019

Keywords

  • Modelling, Particle method, Shock wave, Simulations, Smoothed particle hydrodynamics