ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF TIP VORTICES ASSOCIATED WITH PLANAR LIFTING SURFACES

Authors
  1. George, M.F.
Corporate Authors
George Engineering Ltd, Ottawa ONT (CAN);Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Three-dimensional models of tip vortex development on a planar lifting surface were developed and were used to predict the inception of cavitation in the vortex. To meet the need for reliable data on tip vortex cavitation, an extensive experimental program was conducted in the MARIN 0.9m large cavitation tunnel, including cavitation observations, surface pressure measurements, 5-hole probe measurements, and LDV measurements. These tests were done on a rectangular and an elliptical planform, both taken from those tested in McCormick's classic experiments. The report describes the analytical models, summarises the principal results from the experimental program, and compares selected data with analytical predictions. In most respects, these comparisons show quite good agreement, and indicate that the analytical models offer improved predictions of tip vortex cavitation compared with McCormick's semiempirical method.
Report Number
GE-87-47 — Contractor Report
Date of publication
15 Apr 1989
Number of Pages
222
DSTKIM No
90-01105
CANDIS No
63376
Format(s):
Hardcopy;Originator's fiche received by DSIS

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