A wing-submerged lifting fan: Wind tunnel investigations and analysis of transition performance

Report (1959)
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Published Date

30-04-1959

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National Research Council Aeronautical Report LR 243

Abstract

Wind tunnel force measurements have been carried out on a wing-fan combination; the high solidity fan was embedded in a two-dimensional symmetrical wing, with the fan axis normal to the wing chord-plane. Results are discussed and compared with a simple momentum theory, with a view to their usefulness in VTOL project studies. Over a limited range, fan power and model force measurements provide reasonable correlation with theoretical predictions. An understanding of the flow in the vicinity of the fan is facilitated by surface pressure measurements and water tunnel flow visualization studies.

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