Two-way coupling model for shock-induced laminar boundary-layer flows of a dusty gas |
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Authors: | Boyi Wang Yi Xiong AN Osiptsov |
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Institution: | [1]LNM, Institute of Mechanics, Chinese Academy of Sciences,Beijing 100080, China [2]Institute of Mechanics, Moscow State University,119899 Moscow, Russia |
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Abstract: | The present paper describes a numerical two-way coupling model for shock-induced laminar boundary-layer flows of a dust-laden gas and studies the transverse migration of fine particles under the action of Saffman lift force. The governing equations are formulated in the dilute two-phase continuum framework with consideration of the finiteness of the particle Reynolds and Knudsen numbers. The full Lagrangian method is explored for calculating the dispersed-phase flow fields (including the number density of particles) in the regions of intersecting particle trajectories. The computation results show a significant reaction of the particles on the two-phase boundary-layer structure when the mass loading ratio of particles takes finite values. |
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