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contributor authorMorten Kjeldsen
contributor authorRoger E. A. Arndt
contributor authorMark Effertz
contributor authorUndergraduate Student
date accessioned2017-05-09T00:02:38Z
date available2017-05-09T00:02:38Z
date copyrightSeptember, 2000
date issued2000
identifier issn0098-2202
identifier otherJFEGA4-27154#481_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/123847
description abstractCavitation observations were made using a highly instrumented 2D NACA 0015 hydrofoil mounted in a specially designed water tunnel. It was found that the dynamic characteristics of the cavitation vary considerably with various combinations of angle of attack and cavitation number, σ. At higher angles of attack, two types of flow unsteadiness are observed. At low σ, a low frequency shedding of cloud cavitation results in a strong oscillation in lift and Δp at a Strouhal number, based on chord length, fc/U, of about 0.15. This frequency is relatively insensitive to changes in σ. As σ is raised, the harmonic content of the oscillations changes significantly. A spectral peak at much higher frequency is noted that increases in frequency almost linearly with cavitation number. Similar behavior is noted in the lift fluctuations. [S0098-2202(00)02503-7]
publisherThe American Society of Mechanical Engineers (ASME)
titleSpectral Characteristics of Sheet/Cloud Cavitation
typeJournal Paper
journal volume122
journal issue3
journal titleJournal of Fluids Engineering
identifier doi10.1115/1.1287854
journal fristpage481
journal lastpage487
identifier eissn1528-901X
keywordsCavitation
keywordsFlow (Dynamics) AND Hydrofoil
treeJournal of Fluids Engineering:;2000:;volume( 122 ):;issue: 003
contenttypeFulltext


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