| Name: Dr Gorakh Nath |
| Affiliation: Motilal Nehru National Institute of Technology Allahabad, Prayagraj-211004, India |
| Conference ID: ASI2026_1009 |
| Title: Shock wave in non-ideal dusty gas with heat conduction and radiation heat flux in presence of gravitational and magnetic fields |
| Abstract Type: Poster |
| Abstract Category: High Energy Phenomena, Fundamental Physics and Astronomy |
| Author(s) and Co-Author(s) with Affiliation: G. Nath(Motilal Nehru National Institute of Technology Allahabad, Prayagraj-211004, India) |
| Abstract: The piston generated spherical shock wave in a perfectly conducting mixture of non-ideal gas and micrometer size solid particles under the influence of gravitational and magnetic fields with conductive and radiative heat fluxes are investigated. It is consider that the equilibrium flow-conditions are maintained and variable energy input is continuously supplied by the moving piston. The Fourier’s law is used to express the heat conduction, and for an optically thick grey gas model the radiation is considered to be of the diffusion type. The thermal conductivity and the absorption coefficient are assumed to vary with temperature and density. The medium is assumed to be under the influence of gravitational field because of central mass at the origin in presence of magnetic field. The gravitational effect of the mixture itself can be neglected in comparison to the central mass attraction. The effects of the variation of the gravitational parameter, universe square of Alfven Mach number (Shock Cowling number) and non-idealness of the gas in the mixture on the flow variables and on the shock are discussed in details. It is found that the presence of gravitational field increases the compressibility of the medium, due to which it is compressed and therefore the distance between the piston and the shock front is reduced and hence the shock strength increases. It is shown that the shock wave decay due to the consideration of magnetic field or non-ideal gas. The shock waves in dusty gas under the influence of gravitational and magnetic fields can be used in the interpret measurements carried out by spacecraft in the solar wind and in neighborhood of the Earth’s surface, in the description of shocks in supernova explosions, in the study of central part of star burst galaxies, nuclear explosion, star formation in shocks and shocks in stellar explosion. |
