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Experimental Study of Ventilated Cavities on Dynamic Test Model

Kuklinski, Robert and Castano, John and Henoch, Charles (2001) Experimental Study of Ventilated Cavities on Dynamic Test Model. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology Pasadena, CA USA. (Unpublished) http://resolver.caltech.edu/CAV2001:sessionB3.004

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Abstract

A series of experiments were conducted to examine ventilated cavity physics. Over two hundred test runs were performed. Tow tank tests were conducted to examine the stability of ventilated cavities. The tests were performed on three different models at speeds up to 55 feet per second. One 6.25-inch diameter model allowed body motion with 3 degrees of freedom. The model also employed a cavitator that could be pitched to +/- six degrees angle of attack. The models allowed the examinationbof ventilation data at a variety of length scales and for a number of cavitator shapes and sizes. Some tests also incorporated simulated rocket exhaust. High frequency solid-state pressure transducers were used to determine the stability of the cavities. The tests confirmed that the dominant cavity frequency was correlated with the cavity length and towing speed. Dynamic model motion and the rocket exhaust both tended to enhance overall cavity stability. The impact of free shear instability on cavity stability was negligible at these speeds.


Item Type:Conference or Workshop Item (Lecture)
Subject Keywords:supercavitating torpedo ventilated cavities cavity stability
Record Number:CAV2001:sessionB3.004
Persistent URL:http://resolver.caltech.edu/CAV2001:sessionB3.004
Usage Policy:The papers of this symposium proceedings are protected by copyright, retained by the authors. Authors control translation and reproduction rights to these works. However, readers are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format. This permission is in addition to rights of reproduction granted under Section 107, 108, and other provisions of the U.S. Copyright Act.
ID Code:59
Collection:CaltechCONF
Deposited By: Imported from CAV2001
Deposited On:30 Apr 2001
Last Modified:26 Dec 2012 07:09

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