Numerical investigation of time-dependent cloud cavitating flow around a hydrofoil

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 th...

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Bibliographic Details
Published inThermal science Vol. 20; no. 3; pp. 913 - 920
Main Authors Zhang, De-Sheng, Zhang, Guan-Gjian, Wang, Hai-Yu, Shi, Wei-Dong
Format Journal Article
LanguageEnglish
Published Belgrade Society of Thermal Engineers of Serbia 01.01.2016
Subjects
Bubbles
Cavitation
Clouds
Clusters
Computer simulation
Density corrections
Holes
Hydrofoils
Mathematical models
Sheets
Suction
Time dependence
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Summary: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.
Bibliography:ObjectType-Article-1
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ISSN:0354-9836
2334-7163
DOI:10.2298/TSCI1603913Z