Summary
Necessary improvements to a recent paper on the flow of a dusty gas by Datta and Mishra are presented: particularly dealing with the importance of particle phase compressibility, and the hyperbolic nature of the particle momentum conservation equation which prohibits downstream (wall) boundary conditions for the solid phase. Basic differences between particulate and ordinary flow boundary layers are discussed and the correct conservation equations are written.
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Fernandez de la Mora, J. Two dimensional stagnation point flow of a dusty gas near an oscillating plate. Acta Mechanica 43, 261–265 (1982). https://doi.org/10.1007/BF01176286
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DOI: https://doi.org/10.1007/BF01176286