Cavitating Inducer Instabilities: Experimental Analysis and 2D Numerical Simulation of Unsteady Flow in Blade Cascade

Joussellin, Florence and Courtot, Yannick and Coutier-Delgosha, Olivier and Reboud, Jean-Luc (2001) Cavitating Inducer Instabilities: Experimental Analysis and 2D Numerical Simulation of Unsteady Flow in Blade Cascade. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA.

Full text available as:

PDF - Requires Adobe Acrobat Reader or other PDF viewer.

Abstract

Cavitating flows in rocket engine turbo-pump inducers are studied by experimental and numerical ways. The experimental analysis focused on the cavitating structures at the periphery of the inducer, the quantification of the vapour volume at inducer inlet, its relation with the backflow and the obstruction effect on the main flow. A 2D numerical model of unsteady cavitation was applied to a blade cascade drawn from the inducer geometry. Unsteady behaviour of sheet cavities attached to the blade suction side depends on the flow rate and cavitation number. In certain conditions, a rotating cavitation phenomenon is observed, in good agreement with experimental observations.

EPrint Type:	Conference or Workshop Item (Lecture)
Uncontrolled Keywords:	instabilities due to cavitation, inducer, upstream pump, image processing, cavitation, 2D numerical model, rotating cavitation modelling
Subjects:	All Records Session B8 Turbomachinery 2
ID Code:	152
Deposited By:	Florence Joussellin
Deposited On:	30 April 2001
Record Number:	CAV2001:sessionB8.002
Official Persistent URL:	http://resolver.caltech.edu/CAV2001:sessionB8.002
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.

Archive Staff Only: edit this record