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Mixed convection flow past a horizontal plate

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Author(s): Savić Lj. | Steinrück H.

Journal: Theoretical and Applied Mechanics
ISSN 1450-5584

Volume: 32;
Issue: 1;
Start page: 1;
Date: 2005;
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Keywords: mixed convection | wake flow | boundary layer theory

ABSTRACT
The mixed convection flow past a horizontal plate being aligned through a small angle of attack to a uniform free stream will be considered in the limit of large Reynolds number and small Richardson number. Even a small angle of inclination of the wake is sufficient for the buoyancy force to accelerate the flow in the wake which causes a velocity overshoot in the wake. Moreover a hydrostatic pressure difference across the wake induces a correction to the potential flow which influences the inclination of the wake. Thus the wake and the correction of the potential flow have to be determined simultaneously. However, it turns out that solutions exist only if the angle of attack is sufficiently large. Solutions are computed numerically and the influence of the buoyancy on the lift coefficient is determined.
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