Relation Between Inducer Inlet Geometry and Flow Structures

The relation between inlet casing geometries and backflow and vortex structures emerged upstream of an inducer was investigated by 3D CFD simulations. Since flow structures such as backflow and vortices are thought to be related to unsteady cavitation phenomena, the effects of inlet casing geometrie...

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Bibliographic Details
Published inJournal of Japan Society of Fluid Mechanics Vol. 23; no. 4; pp. 243 - 251
Main Authors KIMURA, Toshiya, YOSHIDA, Yoshiki
Format Journal Article
LanguageJapanese
Published The Japan Society of Fluid Mechanics 25.08.2004
Subjects
backflow
CFD
inlet geometry
turbopump inducer
vortex
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Summary:The relation between inlet casing geometries and backflow and vortex structures emerged upstream of an inducer was investigated by 3D CFD simulations. Since flow structures such as backflow and vortices are thought to be related to unsteady cavitation phenomena, the effects of inlet casing geometries on such flow structures were examined by CFD simulations. The simulation results showed that flow structures, especially upstream of the inducer, were strongly affected by slight modification of the inlet geometry of the casing and the systematic relations were found between flow structures and the inlet geometries.
ISSN:0286-3154
2185-4912
DOI:10.11426/nagare1982.23.243