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Jet decay rate effects on hover jet-induced loads (1980)

Warcup, R. W. ; Kuhlman, J. M.

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Publication Date: 2019-06-27

Description: The paper explains the mechanisms for observed jet decay rate effects on jet-induced loads on a flat plate for cross-flow and hover configurations. Examples are presented for the influence of the decay rate on integrated loads on a flat plate induced by the jet issuing at a right angle from the plate into still air; knowledge of these jet-induced loadings is of particular importance for VTOL aircraft design because they produce an effective loss in the lift force available in hover. The apparent inconsistency between existing lift loss vs jet decay rate trends is explained in light of the different mechanism which determine the jet mixing and trajectory, i.e., entrainment, blockage, and the vortex pair associated with a jet in crossflow.

Keywords: AERODYNAMICS

Type: Journal of Aircraft; 17; Aug. 198

Format: text

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