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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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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Abstract 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.
AbstractList 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.
Author KIMURA, Toshiya
YOSHIDA, Yoshiki
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DOI 10.11426/nagare1982.23.243
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10) 古川雅人 : ターボ機械における流動現象の知的可視化, 可視化情報, Vol.23, No.91, (2003), 18-25.
3) Tsujimoto, Y., Yoshida, Y. & Hashimoto, T. : Observation of Oscillating Cavitation of an Inducers, ASME Journal of Fluids Engineering, Vol.119, (1997), 775-781.
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Snippet The relation between inlet casing geometries and backflow and vortex structures emerged upstream of an inducer was investigated by 3D CFD simulations. Since...
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StartPage 243
SubjectTerms backflow
CFD
inlet geometry
turbopump inducer
vortex
Title Relation Between Inducer Inlet Geometry and Flow Structures
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