P. K. Sahu

Bio: P. K. Sahu is an academic researcher. The author has contributed to research in topics: Magnetic field & Thermal conduction. The author has an hindex of 1, co-authored 1 publications receiving 4 citations.

Magnetogasdynamic exponential shock wave in a self-gravitating, rotational axisymmetric non-ideal gas under the influence of heat-conduction and radiation heat-flux

Abstract: Similarity solutions are obtained for one-dimensional cylindrical shock wave in a self-gravitating, rotational axisymmetric non-ideal gas with azimuthal or axial magnetic field in the presence of conductive and radiative heat fluxes The total energy of the wave is non-constant It is obtained that the increase in the Cowling number, in the parameters of radiative as well as conductive heat transfer and the parameter of the non-idealness of the gas have a decaying effect on the shock wave however increase in the value of gravitational parameter has reverse effect on the shock strength It is manifested that the presence of azimuthal magnetic field removes the singularities which arise in some cases of the presence of axial magnetic field Also, it is observed that the effect of the parameter of non-idealness of the gas is diminished by increasing the value of the gravitational parameter

Analysis of magnetogasdynamic spherical shock wave in dusty real gas with gravitational field and monochromatic radiation

Abstract: For the unsteady, self-similar flow-field from spherical shock to a moving piston behind it in a dusty gas, solutions are obtained. The dust consists of tiny solid particles continually scattered in a non-ideal gas. The medium is subjected to gravitational and magnetic fields with monochromatic radiation. The Roche model is appropriate here, i.e., because of a central mass of its origin the gravitational field exists. The flow of radiation is thought to pass into a non-ideal electrical gas with static intensity and energy is only captured by shocks in the opposite direction of radiation. The outcomes of having an impact of the gravitational or magnetic fields and the absence of these fields are compared. It is exciting to be aware that on the piston, the pressure and density disappear in the presence of an azimuthal magnetic field, and consequently at the middle of symmetry a vacuum is formed, which is in high-quality agreement to generate a shock wave in the laboratory.

Similarity solution for one dimensional motion of a magnetized self-gravitating gas with variable density under the absorption of monochromatic radiation

Abstract: Abstract The impendence of azimuthal or axial magnetism in one-dimensional shock wave prevalence via a gas with monochromatic radiation for cylindrical and spherical geometry is examined. The travelling piston supplies the varying input of energy continuously and conditions of equilibrium flow through the whole field are retained. A regime of ODEs is derived by means of the regime of governing motion’s equations using the similarity process. The distributions of gas-dynamical quantities, obtained by their numerical integration, are discussed through figures. It is observed that the adiabatic index and the impendence of magnetism, as well as gravitation, lessen the shock intensity, however, the initial density variation index has the opposite behaviour on it.