Cavitation observations around the CY4-hydrofoil by means of high speed photography

Autor:	Tsutomu Narasaka, Yasushige HlRATA, Risaburo Oba
Rok vydání:	1988
Předmět:	Materials science Meteorology Clark Y Mechanical Engineering Bubble Cavitation High-speed photography Flow (psychology) Bubble cloud Mechanics Condensed Matter Physics Vortex
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 54:13-18
ISSN:	1884-8346 0387-5016
Popis:	In order to clarify the Johnsson effects which so often arise in single-foil cavitation-experiments, careful cavitation observations were made around a typical Clark Y foil of 4 percent thickness in our closed type cavitation tunnel, with which a number of cavitation-performance-tests have been done by late Prof. F. Numachi, for various cavitation numbers and incidences. For positive incidences of technical interest, we mainly observed spot cavitation, which seemed to be very insensitive to the cavitation nuclei, as well as flow fluctuations, accompanying the vortex type-, the band type-, the large spherical-bubbles as well as the bubble cloud. Abrupt separations on large groups of spot cavitation bubbles were also periodically observed within the transient region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5646f689d16f18b5c3dfd01e38078dca https://doi.org/10.1299/kikaib.54.13 Zobrazit plný text záznamu