Steady flow past a body (or bodies) fixed in a uniform the flow of dusty gas is considered. The general feature of the flow field is given when the relaxation time of the dust particles is infinite. Especially, it is shown that the velocity field of the gas is exactly the same as that of the incompressible invisid fluid which does not contain any dust particle and the effect of the dust particles modifies only the pressure of the gas when the body is semi-infinite and its cross section never shrinks as going downstream.
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