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1 International Journal of Applied Mechanics and Engineering

1 2008

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Magnetogasdynamic shock waves in a non-uniform gas with heat conduction and radiation heat-flux

Vishwakarama J. P., Singh A. K.

International Journal of Applied Mechanics and Engineering

2008

Vol. 13, no 3

797-815

The propagation of a cylindrical or spherical shock wave in an ideal gas with heat conduction and radiation heat-flux, in the presence of a spacially decreasing azimuthal magnetic field, is investigated. The initial density of the gas is assumed to obey a power law. The heat conduction is expressed in terms of Fourier's law and the radiation is considered to be of the diffusion type for an optically thick grey gas model. The thermal conductivity K and the absorption coefficient are assumed to vary with temperature and density. The shock wave is assumed to be driven by a piston moving with a variable velocity. Similarity solutions are obtained and the effects of variation of the heat transfer parameters and the variation of piston velocity (or initial density) and Alfven-Mach number are investigated.