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Numerical simulation of drag coefficient for supercavitating bodies

  • Wei Cao*
  • , Ying Jie Wei
  • , Wan Jin Han
  • , Jia Zhong Zhang
  • , Wei Yuan Wang
  • , Qing Li Zhang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The friction drag coefficient and form drag coefficient for the supercavitating body with different cavity profile were obtained by numerical simulation. With the empirical formula of drag coefficient based on the commonly streamline submerged body, the formula for the supercavitating body was modified to match with those of the numerical results. Using the formula, a software for underwater trajectory prediction was programmed. The underwater trajectory of the all-wetted supercavitating body were predicted by the software is consistent with the experiment results. It is shown that the modificatory formulae obtained by numerical calculation are reasonable.

Original languageEnglish
Pages (from-to)208-212
Number of pages5
JournalGongcheng Lixue/Engineering Mechanics
Volume25
Issue number12
StatePublished - Dec 2008
Externally publishedYes

Keywords

  • Drag coefficient
  • Fluid mechanics
  • Numerical simulation
  • Supercavity
  • Underwater trajectory

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