Heat Transfer from a Circular Cylinder in a Rarefied Gas Flow

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  • Yamamoto Kyoji
    Department of Aeronautical Engineering, Faculty of Engineering, Kyoto University

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Abstract

The heat transfer from a circular cylinder in a slightly rarefied gas flow at low Mach numbers is investigated on the basis of the linearized B–G–K model of the Boltzmann equation. A kinetic theory analysis of the Knudsen layer around the cylinder is put forward to the second approximation. Numerical discussions are made of the structure of the Knudsen layer and of the coefficient of temperature jump. A formula for the Nusselt number is also derived.

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