Abstract
This paper reports a study on a highly rarefied gaseous jet plume flows out of a two‐dimensional slit and impinges on a flat plate which is set vertically to the plume flow direction. It includes some analytical collisionless flow properties for a free plume and the impingement on the plate. This study yields the maximum value of the shear stress and the location for a two‐dimensional jet impinging on a flat plate. Numerical simulation results obtained with the direct simulation Monte Carlo method validate the analytical collisionless flow solutions.
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