Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings

In the present study, the authors investigate the simplest model of cross-flow impellers, in order to provide the fundamental flow features of cross-flow impellers. The model is a two-dimensional cross-flow impeller with a very-high aspect ratio, and rotates in stationary fluid. More strictly, we oc...

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Autores principales:	Hiroaki MIHARA, Tetsuya OKAMOTO, Keisuke SUZUKI, Takashi NOGUCHI, Katsuya HIRATA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	cross-flow fan cross-flow impeller blower flow visualisation piv Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/dc09793b0d93430487c83dde7340382f
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spelling	oai:doaj.org-article:dc09793b0d93430487c83dde7340382f2021-11-29T05:56:31ZExperimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings2187-974510.1299/mej.19-00432https://doaj.org/article/dc09793b0d93430487c83dde7340382f2020-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/3/7_19-00432/_pdf/-char/enhttps://doaj.org/toc/2187-9745In the present study, the authors investigate the simplest model of cross-flow impellers, in order to provide the fundamental flow features of cross-flow impellers. The model is a two-dimensional cross-flow impeller with a very-high aspect ratio, and rotates in stationary fluid. More strictly, we occasionally place a splitter plate with minimal influence instead of casings for more precise observations and measurements. Instantaneous measurements of flow-velocity vectors on the mid-span plane are conducted using a CCD camera and a double-pulse YAG laser with a particle-image-velocimetry technique, in addition to conventional flow visualisations and hot-wire-velocimetry measurements. As a result, the authors show the revolutional motion of such an eccentric vortex as a large-scale re-circulating flow structure inside the cross-flow impeller, and reveal the detail of flow features at Reynolds number Re = 300-2500. Furthermore, the authors show the relations between Re and out-flow rate from the impeller.Hiroaki MIHARATetsuya OKAMOTOKeisuke SUZUKITakashi NOGUCHIKatsuya HIRATAThe Japan Society of Mechanical Engineersarticlecross-flow fancross-flow impellerblowerflow visualisationpivMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 3, Pp 19-00432-19-00432 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	cross-flow fan cross-flow impeller blower flow visualisation piv Mechanical engineering and machinery TJ1-1570
spellingShingle	cross-flow fan cross-flow impeller blower flow visualisation piv Mechanical engineering and machinery TJ1-1570 Hiroaki MIHARA Tetsuya OKAMOTO Keisuke SUZUKI Takashi NOGUCHI Katsuya HIRATA Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings
description	In the present study, the authors investigate the simplest model of cross-flow impellers, in order to provide the fundamental flow features of cross-flow impellers. The model is a two-dimensional cross-flow impeller with a very-high aspect ratio, and rotates in stationary fluid. More strictly, we occasionally place a splitter plate with minimal influence instead of casings for more precise observations and measurements. Instantaneous measurements of flow-velocity vectors on the mid-span plane are conducted using a CCD camera and a double-pulse YAG laser with a particle-image-velocimetry technique, in addition to conventional flow visualisations and hot-wire-velocimetry measurements. As a result, the authors show the revolutional motion of such an eccentric vortex as a large-scale re-circulating flow structure inside the cross-flow impeller, and reveal the detail of flow features at Reynolds number Re = 300-2500. Furthermore, the authors show the relations between Re and out-flow rate from the impeller.
format	article
author	Hiroaki MIHARA Tetsuya OKAMOTO Keisuke SUZUKI Takashi NOGUCHI Katsuya HIRATA
author_facet	Hiroaki MIHARA Tetsuya OKAMOTO Keisuke SUZUKI Takashi NOGUCHI Katsuya HIRATA
author_sort	Hiroaki MIHARA
title	Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings
title_short	Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings
title_full	Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings
title_fullStr	Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings
title_full_unstemmed	Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings
title_sort	experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/dc09793b0d93430487c83dde7340382f
work_keys_str_mv	AT hiroakimihara experimentalstudyontwodimensionalcrossflowimpellerwithaminimalsplitterplateinsteadofcasings AT tetsuyaokamoto experimentalstudyontwodimensionalcrossflowimpellerwithaminimalsplitterplateinsteadofcasings AT keisukesuzuki experimentalstudyontwodimensionalcrossflowimpellerwithaminimalsplitterplateinsteadofcasings AT takashinoguchi experimentalstudyontwodimensionalcrossflowimpellerwithaminimalsplitterplateinsteadofcasings AT katsuyahirata experimentalstudyontwodimensionalcrossflowimpellerwithaminimalsplitterplateinsteadofcasings
_version_	1718407615731466240

Experimental study on two-dimensional cross-flow impeller with a minimal splitter plate instead of casings

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