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http://dx.doi.org/10.15435/JILASSKR.2011.16.4.186

A Numerical Analysis of Internal Nozzle Flows Through the Multi-Fluid Model  

Ryu, Bong-Woo (한양대학교 대학원)
Lee, Chang-Sik (한양대학교 기계공학부)
Publication Information
Journal of ILASS-Korea / v.16, no.4, 2011 , pp. 186-194 More about this Journal
Abstract
This study performed the numerical analysis of the internal nozzle flows including cavitation phenomena by using the automated body-fitted grid generator and the multi-fluid model. The effect of grid refinement and the validation of multifluid model were investigated using four computational meshes under two test conditions. The mesh #3 was chosen as the optimum which can reduce the computational time and have good prediction ability to identify the cavitation region simultaneously. In addition, the computed results using multi-fluid model were compared with the reference experimental observations and numerical simulation results using homogeneous equilibrium model. From the distribution of volume fraction and velocity field, the multi-fluid model predicted the internal nozzle flows well when the liquid quality parameters were selected as $1.0{\times}10^{12}$ for initial number density and 25 ${\mu}m$ for bubble diameter.
Keywords
Automated body-fitted grid generator; Cavitation; Multi-fluid model; AVL-FIRE code;
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Times Cited By KSCI : 2  (Citation Analysis)
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