THERMAL SCIENCE

International Scientific Journal

De-Sheng Zhang

,

Guan-Gjian Zhang

,

Hai-Yu Wang

,

Wei-Dong Shi

NUMERICAL INVESTIGATION OF TIME-DEPENDENT CLOUD CAVITATING FLOW AROUND A HYDROFOIL

ABSTRACT
Time-dependent cloud cavitation around the 2-D Clark-Y hydrofoil was investigated in this paper based on an improved filter based model and a density correction method. The filter-scale in filter based model simulation was discussed and validated according to the grid size. Numerical results show that in the transition from sheet cavitation to cloud cavitation, the sheet cavity grows slowly to the maximum length during the re-entrant jet develops. The mild shedding bubble cluster convects downwards the hydrofoil and continues to grow up after detaching from the suction surface of hydrofoil, and a bubble cluster introduced at the rear part of hydrofoil. While the sheet cavity generates, the bubble cluster breakups.
KEYWORDS
sheet cavitation, cloud cavitation, hydrofoil, filter based model, density correction method
PAPER SUBMITTED: 2015-09-03
PAPER REVISED: 2016-01-02
PAPER ACCEPTED: 2016-01-28
PUBLISHED ONLINE: 2016-08-13
DOI REFERENCE: https://doi.org/10.2298/TSCI1603913Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Issue 3, PAGES [913 - 920]
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Numerical investigation of time-dependent cloud cavitating flow around a hydrofoil

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence