A quasi-one-dimensional bubbly cavitating flow model and comparison with experiments

C. F. Delale, Z. Baskaya, S. Pasinlioglu, M. Sen, E. Ayder

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A bubbly cavitating flow model is constructed for unsteady quasi-one-dimensional and two-dimensional nozzle flows. In each case, the system of model equations is reduced to evolution equations for the flow velocity and bubble radius and the initial and boundary value problems of the evolution equations are formulated. The rest of the flow variables are then related to the solution of the evolution equations. Nozzle flow experiments are also carried out using water. The static wall pressures are measured at different locations of the nozzle and the partial cavitation cloud cycle is recorded using a high speed camera. Results of the numerical simulations obtained for quasi-one-dimensional nozzle flows, seem to capture the measured pressure losses due to cavitation, but they turn out to be insufficient in describing the twodimensional cavitation cloud structures, suggesting the need for two-dimensional numerical solution of the model equations.

Original languageEnglish
Title of host publication9th European Conference on Turbomachinery
Subtitle of host publicationFluid Dynamics and Thermodynamics, ETC 2011 - Conference Proceedings
EditorsM. Sen, G. Bois, T. Arts, M. Manna
PublisherIstanbul Technical University
Pages1017-1028
Number of pages12
ISBN (Electronic)9789755613918
Publication statusPublished - 2011
Event9th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, ETC 2011 - Istanbul, Turkey
Duration: 21 Mar 201125 Mar 2011

Publication series

Name9th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, ETC 2011 - Conference Proceedings
Volume2
ISSN (Print)2410-4833

Conference

Conference9th European Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, ETC 2011
Country/TerritoryTurkey
CityIstanbul
Period21/03/1125/03/11

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