| THE FLOW STRUCTURE OF DILUTE GAS-PARTICLE SUSPENSIONS BEHIND A SHOCK WAVE MOVING ALONG A FLAT SURFACE |
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| 作者姓名： | A.N.Osiptsov S.L.Veselyi V.A.Kulikovskii 王柏懿 |
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| 作者单位： | Institute of Mechanics，Moscow state University，USSR，Institute of Mechanics，Moscow state University，USSR，Institute of Mechanics，Moscow state University，USSR，Institute of Mechanics，Academia Sinica，Beijing |
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| 摘 要： | The asymptotic and numerical investigations of shock-induced boundary layers in gas-particle mixtures are presented.The Saffman lift force acting on a particle in a shear flow istaken into account.It is shown that particle migration across the boundary layer leads tointersections of particle trajectories.The corresponding modification of dusty gas model isproposed in this paper.The equations of two-phase sidewall boundary layer behind a shock wave moving at aconstant speed are obtained by using the method of matched asymptotic expansions.Themethod of the calculation of particle phase parameters in Lagrangian coordinates isdescribed in detail.Some numerical results for the case of small particle concentration aregiven.
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| 收稿时间： | 5 March 1990 |
The flow structure of dilute gas-particle suspensions behind a shock wave moving along a flat surface |
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| A. N. Osiptsov,S. L. Veselyi,V. A. Kulikovskii,Wang Bai-yi.THE FLOW STRUCTURE OF DILUTE GAS-PARTICLE SUSPENSIONS BEHIND A SHOCK WAVE MOVING ALONG A FLAT SURFACE[J].Applied Mathematics and Mechanics(English Edition),1991,12(6):531-538. |
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| Authors: | A N Osiptsov S L Veselyi V A Kulikovskii Wang Bai-yi |
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| Institution: | (1) Institute of Mechanics, Moscow state University, USSR;(2) Institute of Mechanics, Academia Sinica, Beijing |
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| Abstract: | The asymptotic and numerical investigations of shock-induced boundary layers in gas-particle mixtures are presented. The Saffman lift force acting on a particle in a shear flow is taken into account. It is shown that particle migration across the boundary layer leads to intersections of particle trajectories. The corresponding modification of dusty gas model is proposed in this paper.
The equations of two-phase sidewall boundary layer behind a shock wave moving at a constant speed are obtained by using the method of matched asymptotic expansions. The method of the calculation of particle phase parameters in Lagrangian coordinates is described in detail. Some numerical results for the case of small particle concentration are given. |
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| Keywords: | gas-particle suspension shock-induced flow two-phase boundary layer |
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