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Russia Ufa
Section  Mechanics 
Title  Features of the impact of spherical shock impulse on the boundary of gas with aqueous foam 
Author(s)  Bolotnova R.Kh.^{a}, Gainullina E.F.^{a} 
Affiliations  Institute of Mechanics, Ufa Centre of the Russian Academy of Sciences^{a} 
Abstract  The formation process of a spherical shock impulse in gas and its interaction with a protective aqueous foam barrier, accompanied by formation of vortex flows, are numerically investigated. The problem is solved in a twodimensional axisymmetric formulation using a twophase model of a gasliquid mixture, which includes the laws of conservation of mass, momentum and energy of the mixture and an equation for the dynamics of volume content of phases.The numerical implementation is carried out on the basis of the OpenFOAM package using the standard compressibleMultiphaseInterFoam solver, modified in accordance with the conditions of the problem and model representations. The discretization of the system of equations in the chosen solver is carried out by the method of finite volumes using the computational Pimple algorithm. A significant decrease in the intensity of the shock wave in its interaction with the aqueous foam barrier is shown and the causes leading to vortex formation in the gas region are revealed. The reliability of the results obtained is estimated by comparison with solutions of a similar problem by other numerical methods. 
Keywords  spherical shock wave, aqueous foam barrier, numerical modeling, OpenFOAM package 
UDC  532.529.5 
MSC  76L04, 76T04, 76U04 
DOI  10.20537/vm180307 
Received  25 June 2018 
Language  Russian 
Citation  Bolotnova R.Kh., Gainullina E.F. Features of the impact of spherical shock impulse on the boundary of gas with aqueous foam, Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki, 2018, vol. 28, issue 3, pp. 364372. 
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