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http://dx.doi.org/10.6112/kscfe.2012.17.3.025

A STUDY ABOUT THE EFFECT OF MODEL CONSTANTS OF TWO CAVITATION MODELS ON CAVITY LENGTH  

Jin, M.S. (School of Mechanical Engineering, Pusan Nat'l Univ.)
Ha, C.T. (School of Mechanical Engineering, Pusan Nat'l Univ.)
Park, W.G. (School of Mechanical Engineering, Pusan Nat'l Univ.)
Jung, C.M. (Naval Systems R&D Institute Division 2, Agency for Defense Development)
Publication Information
Journal of computational fluids engineering / v.17, no.3, 2012 , pp. 25-32 More about this Journal
Abstract
This work was devoted to compare two different cavitation models to study the dependency of model constants. The cavitation model of Merkle et al.(2006) and Kunz et al.(2000) were used for the present computational study. The cavitation models were coupled with the incompressible unsteady Reynolds-Averaged Navier-Stokes solver to indicate the vaporization and condensation processes. For this purpose, a preconditioning method was added as the pseudo-time term to solve the unsteady stiffness problems. For the validation of the numerical simulation, the computation was performed for the cavitating flow in a converging-diverging channel. The present results show that Merkle's cavitation model is independent to the model constants, and the higher numerical accuracy over Kunz's cavitation model.
Keywords
Cavitation; Cavitation Model; Converging-Diverging Channel; Homogeneous Mixture Model; Navier-Stokes Equations;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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