Isfahan University of Technology Journal of Computational Methods in Engineering 2228-7698 23 2 2022 12 31 A Second Order Accurate Method in Simulation of Underwater Explosion A Second Order Accurate Method in Simulation of Underwater Explosion 133 149 2878 FA A.R. Pishevar Esfahani And M.R.Tavakoli Nejad Journal Article 2022 12 31 In this paper, a numerical scheme is proposed for the multi-fluid compressible flows. This method is applied to the problem of underwater explosion. The proposed scheme is basically the extension of Godunov method in gas dynamic problems to the multifluid environments and is second-order accurate in space. In this method, also, the problem of artificial mixing of two different phases on Eulerian grids is prevented by a front tracking technique. The numerical results of this study are in very good agreement with previous numerical and exprimental results In this paper, a numerical scheme is proposed for the multi-fluid compressible flows. This method is applied to the problem of underwater explosion. The proposed scheme is basically the extension of Godunov method in gas dynamic problems to the multifluid environments and is second-order accurate in space. In this method, also, the problem of artificial mixing of two different phases on Eulerian grids is prevented by a front tracking technique. The numerical results of this study are in very good agreement with previous numerical and exprimental results https://jcme.iut.ac.ir/article_2878_a6db4ed04f1621a119799fd3d7545d3d.pdf