Numerical analysis of 2-D unsteady cavitating flow around hydrofoils in cascade

Yuka Iga, Motohiko Nohmi, Akira Goto, Byeong Rog Shin, Toshiaki Ikohagi

Research output: Contribution to journalArticle

6 Citations (Scopus)

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 languageEnglish
Pages (from-to)368-374
Number of pages7
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume68
Issue number666
DOIs
Publication statusPublished - 2002 Feb

Keywords

  • Cascade
  • Cavitation
  • Compressible Navier-Stokes equation
  • Numerical analysis
  • Two-phase flow

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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