Abstract
Gas flow from one chamber to another through a plane wall perforated with cylindrical channels is investigated. Gas flow close to the surface of a wall is studied by the methods of kinetic gas theory. The molecule velocity distribution function is found from the Boltzmann equation as a result of its solution by the method of moments. Intermolecular collisions in the channels are supposed to be absent. Molecules collide in the Knudsen layer near the perforated wall. This leads to the formation of a uniform flow far from the wall.
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