Modeling of Unsteady Sheet Cavitation on Marine Propeller Blades
Abstract
Unsteady sheet cavitation is very common on marine propulsor blades. The authors summarize a lifting-surface and a surface-panel model to solve for the unsteady cavitating flow around a propeller that is subject to nonaxisymmetric inflow. The time-dependent extent and thickness of the cavity were determined by using an iterative method. The cavity detachment was determined by applying the smooth detachment criterion in an iterative manner. A nonzeroradius developed vortex cavity model was utilized at the tip of the blade, and the trailing wake geometry was determined using a fully unsteady wake-alignment process. Comparisons of predictions by the two models and measurements from several experiments are given.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 01, 2003
- Source ID
- 10.1155/s1023621x03000241
Entities
People
- Hanseong Lee
- Spyros A. Kinnas
- Yin L. Young
Organizations
- Office of Naval Research
- University of Texas at Austin