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Simulation of unsteady cavitating flows using the DES method

  • Jing Zhao*
  • , Jia Zhong Zhang
  • , Ying Jie Wei
  • *Corresponding author for this work
  • School of Astronautics, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Cavities can easily form in the low pressure zone on the surface of a hydrofoil moving under water. Detached-eddy simulation (DES) was applied to unsteady cavitating flows over a hydrofoil. The formation, development, collapse and detachment of the cavities were simulated. Consequent variations in lift and drag on the hydrofoil were obtained. Simulation results showed that cavitating flow has significant periodic characteristics, and lift and drag on the hydrofoil vary synchronously. Comparisons with experimental data showed that cavitating flows can be predicted well by the method discussed.

Original languageEnglish
Pages (from-to)23-26
Number of pages4
JournalHarbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University
Volume30
Issue number1
StatePublished - Jan 2009
Externally publishedYes

Keywords

  • Cavity
  • Dettached eddy simulation
  • Hydrofoil
  • Unsteady

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