The turbulent boundary layer with variable Prandtl number
The general theory for the solution of the energy equation for laminar boundary layers with variable Prandtl number is applied directly to the turbulent case in order to extend the von Kàrmàn analogy between heat transfer and fluid friction to include a turbulence Prandtl number other than unity and a realistic shear distribution other than constant across the turbulent portion of the boundary layer.
The calculation of heat-transfer coefficients for high and low speeds is discussed. The general heat-transfer theory is compared with data for the supersonic flow of air over a flat plate in a wind tunnel.
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