Shock Wave Structure in a Heterogeneous Medium with Two Pressures
A. V. Fedorov
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
fedorov@itam.nsc.ru
Keywords: смесь газа и твердых частиц, давление фазы частиц, структура ударной волны, замороженные и дисперсионные ударные волны, mixture of a gas and solid particles, particle phase pressure, shock wave structure, frozen and disperse shock waves
Abstract
The shock wave motion of a mixture of a gas and fine solid particles is considered with allowance for the difference in velocities and the particle phase pressure, which is described by Anderson-type and other equations. Various forms of the equation of state for the particle phase are described. Graphical illustrations are given for the equation determining the composite type of this model with the particle phase pressure being neglected. Under certain assumptions, the complete model can be reduced to a hyperbolic system of equations. Types of shock waves formed in such a mixture are determined for this system of equations. The statements are illustrated by results of numerical simulations.
|
