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...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | International Journal of Rotating Machinery |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1023621X01000379 |
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| _version_ | 1832552251428700160 |
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| author | Robert Kiml Sadanari Mochizuki Akira Murata |
| author_facet | Robert Kiml Sadanari Mochizuki Akira Murata |
| author_sort | Robert Kiml |
| collection | DOAJ |
| 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. |
| format | Article |
| id | doaj-art-bc31ea0e7bf64251971d61ef76eb66f6 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-bc31ea0e7bf64251971d61ef76eb66f62025-02-03T05:59:12ZengWileyInternational 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. |
| 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. |
| 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_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_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_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 |
| 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 |