A.r. Pishevar Esfahani and M.r.tavakoli Nejad,
Volume 23, Issue 2 (1-2005)
Abstract
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
A. Jafarian, ,
Volume 34, Issue 2 (1-2016)
Abstract
In the present paper thecompressibleflowoftheunderwaterexplosionhasbeensimulatedusing One-fluid
method along with the Eulerian-Lagrangian ALE method. Besides, the exact Riemann solver and an appropriate
equation of state which is consistent with the thermodynamic behavior of water in underwater explosion, is employed.
The two dimensional underwater explosion problem near a flat plate is modeled. In order to increase the accuracy of
the method for simulating the wave front, the adaptive grid is used. The simulated underwater explosion results
agreed well with other similar numerical simulations. The numerical results indicate the capability of the present
study in simulating the physics of underwater explosion and modeling the fluctuations of explosive bubble and also
predicting the creation and collapse of the caviation zone.
