Unsteady Tip Leakage Vortex Cavitation Originating From the Tip Clearance of an Oscillating Hydrofoil

Autor:	Masahiro Murayama, Yoshinobu Tsujimoto, Yoshiki Yoshida
Rok vydání:	2005
Předmět:	Cavity size Materials science business.industry Mechanical Engineering Mechanics Vortex Physics::Fluid Dynamics Unsteady flow Tip clearance Optics Cavitation Slender body business Leakage (electronics)
Zdroj:	Journal of Fluids Engineering. 128:421-429
ISSN:	1528-901X 0098-2202
DOI:	10.1115/1.2173290
Popis:	Tip leakage vortex cavitations originating from the tip clearance of an oscillating hydrofoil were observed experimentally. It was found that the delay between the unsteady and the steady-state results of the tip leakage vortex cavitation increase, and that the maximum cavity size decreases when the reduced oscillating frequency increases. To simulate the unsteady characteristics of tip leakage vortex cavitation, a simple calculation based on slender body approximation was conducted taking into account the effect of cavity growth. The calculation and experimental results of the cavity volume fluctuation were found to be in qualitative agreement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcfbe3dc50b89811f8d484464ea2355d https://doi.org/10.1115/1.2173290 Zobrazit plný text záznamu