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Dusty shock wave interaction – formation of fully dispersed waves and particle focusing effect
Author(s) -
Osiptsov Alexander,
Golubkina Irina
Publication year - 2011
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201110307
Subject(s) - shock wave , physics , mechanics , longitudinal wave , particle (ecology) , shock (circulatory) , classification of discontinuities , plane (geometry) , mechanical wave , classical mechanics , wave propagation , optics , geometry , geology , medicine , mathematical analysis , oceanography , mathematics
The problem of regular (symmetric and asymmetric) interaction of plane shock waves in a steady‐state dusty gas flow is considered. For near‐sonic flows with a fairly high particle mass loading, the possibility of the formation of wave structures is revealed, in which either all or only some of the incident or reflected waves degenerate into so‐called fully dispersed waves, i.e. zones in which no discontinuities appear in the parameters of each phase. For stronger shock waves and low particle mass concentration, the effect of aerodynamic particle focusing and the formation of a narrow high‐concentration beam of particles behind the point of the interaction of the waves are detected on the basis of parametric numerical calculations. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)