The Flow Structure of Dilute Gas-Particle Suspensions behind a Shock Wave Moving along a Flat Surface

A. N. Osiptsov; S. L. Veselyi; V. A. Kulikovskii; Wang Bai-yi

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Article Navigation > Applied Mathematics and Mechanics > 1991 > 12(6): 501-507

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, 1991, 12(6): 501-507.

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The Flow Structure of Dilute Gas-Particle Suspensions behind a Shock Wave Moving along a Flat Surface

1.
Institute of Mechanics, Moscow State University, USSR;
2.
Institute of Mechanics, Academia Sinica, Beijing

Received Date: 1990-03-05
Publish Date: 1991-06-15

Abstract

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.
- gas-particle suspension,
- shock-induced flow,
- two-phase boundary layer

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References(6)

References

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[2]	Saffman,P.G.,The lift on a small sphere in a slow shear flow,J.Fluid Mech.,22(1965), 385-400.Corrigendum,J.Fluid Mech.,31(1968),624.
[3]	Marble,F.E.,Dynamics of dusty gases,Ann.Rev.Fluid Mech.,2(1970),397-446.
[4]	Волощдк В.М.,Вбебенце б Ааробцнамцку Грубобцслерсных Аарозолец,Л.,Гидрометеоиздат(1971)
[5]	Нигматулии Р.И.,Оснобы Механцкц Геmероенных Среб,М.,Наука(1968)
[6]	Schlichting,H.,Boundary Layer Theory,McGraw-Hall,New York(1968).