Abstract
2-D unsteady cavitating flows around hydrofoils are numerically calculated, and the performance characteristics of hydrofoils in cascade are investigated under several cavitating flow conditions. A locally homogeneous model of compressible gas-liquid two-phase media is applied to simulate above cavitating flows using TVD-MacCormack's numerical method. The present method permits us to treat the whole cavitating and noncavitating unsteady flows field and fluid transients without any remeshing procedures, though it gives somewhat diffusive cavity surface compared with two fluids cavity flow model. Some calculated results are obtained, and discussed on the validity of the present method and its applicability to wide range of cavitating cascade flows.
Original language | English |
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Pages (from-to) | 368-374 |
Number of pages | 7 |
Journal | Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
Volume | 68 |
Issue number | 666 |
DOIs | |
Publication status | Published - 2002 Feb |
Keywords
- Cascade
- Cavitation
- Compressible Navier-Stokes equation
- Numerical analysis
- Two-phase flow
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering