EVALUATION OF THE CAVITATION INCEPTION PREDICTION CAPABILITIES OF THE PROPELLER SURFACE PANEL CODE ASP-2

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Authors
  1. Noble, D.J.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The paper describes results of a comparative study performed at the Defence Research Establishment Atlantic (DREA) to evaluate the cavitation prediction capabilities of DREA's surface panel code ASP-2. The code performs an unsteady potential flow analysis of marine propellers for a specified non-uniform inflow distribution corresponding to operation in a ship's wake. ASP-2 predictions of the cavitation inception performance of two propellers designed for twin-screw surface ships are correlated with experimental data obtained both at model scale in a depressurized towing tank and on full scale sea trials. For a range of operating conditions in a ship's wake, results are presented that show a good correlation of ASP-2 predictions with experiment for cavitation forming at the leading edge of both outer radius and root sections of propeller blades. ASP-2 predictions of leading edge cavitation on the face or downstream surface of blades are also shown to be significantly closer to observations made on full scale sea trials than are model test results.
Keywords
Cavitation inception
Date of publication
01 Jun 1996
Number of Pages
8
DSTKIM No
97-03767
CANDIS No
503805
Format(s):
Hardcopy;Document Image stored on Optical Disk

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