Shock Wave In The Uniform Dense Magnetic Fluid

In recent years,people have paid more attention to the volatility of plasma and dust plasma,and this research has become a newly developing field.the study of relevant physics characteristics for explaining the related physical phenomena is very important.On the one hand,the nonlinear characteristic of shock wave in the uniform dense magnetic fluid is studied in this paper.First,the model of quantum magnetic hydrodynamics is used,and a nonlinear dynamic equation is set up about the change of potential with time and space under the case that the collision frequency between ions and neutrons is far less than the rate of quantity field;Then applying the traveling wave method,the new solutions of shock wave and blast wave are get for the nonlinear equations;According to the physical parameters for the plots;the change of the electrostatic potential with the magnetic field intensity,density and collision frequency are analyzed in detail.On the other hand,this paper had studied the characteristics of dust acoustic waves in a uniform dense dusty magnetoplasma system,a non-linear dynamical equation is deduced using the quantum hydrodynamic model to account for dust–neutral collisions.The linear dispersion relation indicates that the scale lengths of the system are revised by the quantum parameter,and that the wave motion decays gradually leading the system to a stable state eventually.The variations of the dispersion frequency with the dust concentration,collision frequency,and magnetic field strength are discussed.For the coherent nonlinear dust acoustic waves,new analytic solutions are obtained,and it is found that big shock waves and wide explosive waves may be easily produced in the background of high dusty density,strong magnetic field,and weak collision.Finally,the result of this paper was compared with my tutor's paper under the corresponding situation.The result can provide some meaning theoretical values for shock wave in uniform dense magnetic fluid.