Flow Visualization in the Vicinity of Simplified Cut-Off Model of Scroll Casing of Centrifugal Fan

Autor:	Tsutomu Sugawara, Kenji Hosoi, Tomohiro Yamaguchi, Hironari Obayashi, Hiroyuki Satou, Michio Kitazume, Hiroyuki Hirahara, Masaaki Kawahashi
Rok vydání:	2000
Předmět:	Flow visualization Engineering business.industry Turbulence Acoustics Scroll Image processing Visualization law.invention Flow (mathematics) law Centrifugal fan business Casing Simulation
Zdroj:	Journal of the Visualization Society of Japan. 20:83-86
ISSN:	1884-037X 0916-4731
DOI:	10.3154/jvs.20.1supplement_83
Popis:	Flow visualization techniques can give us useful knowledge for understanding of complicated flow field or for practical design of fluid machinery and its elements. New techniques based on recent development of high-functional equipments and light source for visualization have possibility to resolve unsolved flow phenomena. Especially quantitative visualization methods using image processing technique, such as PIV, digital speckle method and LIF, are very useful to analyze complicated flow phenomena. A target of experimental analysis shown here is flow in a centrifugal fan in which 3D turbulent flow is induced. Aero-acoustic noise generation in it is related to the complicated flow field in the fan. The mechanism of noise generation at cut-off of scroll casing of the fan is investigated by using new technique and devices for visualization.
Databáze:	OpenAIRE
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