Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel

The present study investigates the effects of gaps between the side-walls and 60∘ ribs on the local heat transfer distribution between two consecutive ribs. The heat transfer and flow visualization experiments were carried out inside a straight rib-roughened duct with the ribs mounted on two opposit...

Full description

Bibliographic Details
Main Authors:	Robert Kiml, Sadanari Mochizuki, Akira Murata
Format:	Article
Language:	English
Published:	Hindawi Limited 2001-01-01
Series:	International Journal of Rotating Machinery
Subjects:	Forced convention Secondary flow Flow separation Internal cooling of gas turbines Particle tracer method Ribs.
Online Access:	http://dx.doi.org/10.1155/S1023621X01000379

id	doaj-bc31ea0e7bf64251971d61ef76eb66f6
record_format	Article
spelling	doaj-bc31ea0e7bf64251971d61ef76eb66f62020-11-25T00:17:59ZengHindawi LimitedInternational Journal of Rotating Machinery1023-621X2001-01-017642543310.1155/S1023621X01000379Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling ChannelRobert Kiml0Sadanari Mochizuki1Akira Murata2Tokyo University of Agriculture & Technology, Department of Mechanical Systems Engineering, Tokyo, JapanTokyo University of Agriculture & Technology, Department of Mechanical Systems Engineering, Tokyo, JapanTokyo University of Agriculture & Technology, Department of Mechanical Systems Engineering, Tokyo, JapanThe present study investigates the effects of gaps between the side-walls and 60∘ ribs on the local heat transfer distribution between two consecutive ribs. The heat transfer and flow visualization experiments were carried out inside a straight rib-roughened duct with the ribs mounted on two opposite side walls with and without the gaps. The results showed that the existence of the gaps appreciably enhances the Nu in the area between two consecutive ribs. It is caused by (1) the introduction of the fresh air through the gaps into this region, and (2) the improvement of the three-dimensional flow structure in the area between the two ribs.http://dx.doi.org/10.1155/S1023621X01000379Forced conventionSecondary flowFlow separationInternal cooling of gas turbinesParticle tracer methodRibs.
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Robert Kiml Sadanari Mochizuki Akira Murata
spellingShingle	Robert Kiml Sadanari Mochizuki Akira Murata Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel International Journal of Rotating Machinery Forced convention Secondary flow Flow separation Internal cooling of gas turbines Particle tracer method Ribs.
author_facet	Robert Kiml Sadanari Mochizuki Akira Murata
author_sort	Robert Kiml
title	Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel
title_short	Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel
title_full	Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel
title_fullStr	Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel
title_full_unstemmed	Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel
title_sort	effects of gaps between side-walls and 60∘ ribs on the heat transfer and rib induced secondary flow inside a stationary and rotating cooling channel
publisher	Hindawi Limited
series	International Journal of Rotating Machinery
issn	1023-621X
publishDate	2001-01-01
description	The present study investigates the effects of gaps between the side-walls and 60∘ ribs on the local heat transfer distribution between two consecutive ribs. The heat transfer and flow visualization experiments were carried out inside a straight rib-roughened duct with the ribs mounted on two opposite side walls with and without the gaps. The results showed that the existence of the gaps appreciably enhances the Nu in the area between two consecutive ribs. It is caused by (1) the introduction of the fresh air through the gaps into this region, and (2) the improvement of the three-dimensional flow structure in the area between the two ribs.
topic	Forced convention Secondary flow Flow separation Internal cooling of gas turbines Particle tracer method Ribs.
url	http://dx.doi.org/10.1155/S1023621X01000379
work_keys_str_mv	AT robertkiml effectsofgapsbetweensidewallsand60ribsontheheattransferandribinducedsecondaryflowinsideastationaryandrotatingcoolingchannel AT sadanarimochizuki effectsofgapsbetweensidewallsand60ribsontheheattransferandribinducedsecondaryflowinsideastationaryandrotatingcoolingchannel AT akiramurata effectsofgapsbetweensidewallsand60ribsontheheattransferandribinducedsecondaryflowinsideastationaryandrotatingcoolingchannel
_version_	1725377411014459392

Effects of Gaps Between Side-Walls and 60∘ Ribs on the Heat Transfer and Rib Induced Secondary Flow Inside a Stationary and Rotating Cooling Channel

Similar Items