NUMERICAL PREDICTION OF UNSTEADY SHEET CAVITATION ON MARINE PROPELLERS

Authors
  1. Noble, D.J.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The document describes the theory and numerical methods used in the propeller analysis program CAVITY that has been developed at the Defence Research Establishment Atlantic (DREA) for the prediction of periodic back sheet cavitation on marine propellers operating in a ship's wake. Sheet cavitation chordwise extents and thickness distributions can be predicted at up to 60 blade angular positions per revolution for a given propeller geometry, operating condition and ship wake inflow in the propeller rotation plane. The procedures used in CAVITY are based on lifting surface methods developed at the Massachusetts Institute of Technology (MIT) as an extension of the PUF-2 code for predicting both steady and unsteady propulsive performance characteristics of marine propellers.
Report Number
DREA-TM-87-203 — Technical Memorandum
Date of publication
15 Jul 1987
Number of Pages
45
DSTKIM No
87-03716
CANDIS No
52504
Format(s):
Hardcopy;Originator's fiche received by DSIS

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