Abstract
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Article Information:
Two-Phase Cavitating Flow in Turbomachines
Sandor I. Bernad, Romeo Susan-Resiga and Sebastian Muntean
Corresponding Author: Sandor I. Bernad
Submitted: March 26, 2012
Accepted: April 17, 2012
Published: November 15, 2012 |
Abstract:
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Cavitating flows are notoriously complex because they are highly turbulent and unsteady flows
involving two species (liquid/vapor) with a large density difference. These features pose a unique challenge
to numerical modeling works. The study briefly reviews the methodology curently employed for industrial
cavitating flow simulations using the two-phase mixture model. The two-phase mixture model is evaluated and
validated using benchmark problem where experimental data are available. A 3D cavitating flow computation
is performed for the GAMM Francis runner. The model is able to qualitatively predict the location and extent
of the 3D cavity on the blade, but further investigation are needed to quatitatively assess the accuracy for real
turbomachinery cavitating flows.
Key words: Cavitation, francis turbine, liquid-vapour interface, vapour volume, , ,
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Abstract
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Cite this Reference:
Sandor I. Bernad, Romeo Susan-Resiga and Sebastian Muntean, . Two-Phase Cavitating Flow in Turbomachines. Research Journal of Applied Sciences, Engineering and Technology, (22): 4685-4695.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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