Numerical Predictions of Pressure Drop and Heat Transfer in a Blade Internal Cooling Passage with Continuous/Truncated Ribs
(2012) In Heat Transfer Research 43(6). p.573-590- Abstract
- Ribs are often used in the mid-section of internal turbine blades to augment heat transfer from the blade wall to a coolant, but most research works are concerned only with continuous ribs attached to the side walls. In this paper, a turbulent flow and heat transfer of a rectangular passage with continuous and truncated ribs on opposite walls have been predicted numerically. Two types of ribs are studied: 90-deg ribs and 45-deg V-shaped ribs. The inlet Reynolds numbers range from 12,000 to 60,000. The complex three-dimensional turbulent flows inside the blade internal coolant passage and heat transfer between the rib-walls and side-walls are presented. The overall performances of six different ribbed passages are evaluated and compared.... (More)
- Ribs are often used in the mid-section of internal turbine blades to augment heat transfer from the blade wall to a coolant, but most research works are concerned only with continuous ribs attached to the side walls. In this paper, a turbulent flow and heat transfer of a rectangular passage with continuous and truncated ribs on opposite walls have been predicted numerically. Two types of ribs are studied: 90-deg ribs and 45-deg V-shaped ribs. The inlet Reynolds numbers range from 12,000 to 60,000. The complex three-dimensional turbulent flows inside the blade internal coolant passage and heat transfer between the rib-walls and side-walls are presented. The overall performances of six different ribbed passages are evaluated and compared. Numerical results show that the passage with truncated V-shaped ribs is very effective in improving the heat transfer performance with a low pressure drop. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3577831
- author
- Li, Shian ; Xie, Gongnan ; Zhang, Weihong and Sundén, Bengt LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- heat transfer, rib, continuous, truncated, computation
- in
- Heat Transfer Research
- volume
- 43
- issue
- 6
- pages
- 573 - 590
- publisher
- Begell House
- external identifiers
-
- wos:000313855400005
- scopus:84873894370
- ISSN
- 1064-2285
- DOI
- 10.1615/HeatTransRes.2012005855
- language
- English
- LU publication?
- yes
- id
- 70f4a9ed-8dc2-4e6d-9819-b0903315db9f (old id 3577831)
- date added to LUP
- 2016-04-01 11:16:54
- date last changed
- 2022-01-26 06:52:21
@article{70f4a9ed-8dc2-4e6d-9819-b0903315db9f,
abstract = {{Ribs are often used in the mid-section of internal turbine blades to augment heat transfer from the blade wall to a coolant, but most research works are concerned only with continuous ribs attached to the side walls. In this paper, a turbulent flow and heat transfer of a rectangular passage with continuous and truncated ribs on opposite walls have been predicted numerically. Two types of ribs are studied: 90-deg ribs and 45-deg V-shaped ribs. The inlet Reynolds numbers range from 12,000 to 60,000. The complex three-dimensional turbulent flows inside the blade internal coolant passage and heat transfer between the rib-walls and side-walls are presented. The overall performances of six different ribbed passages are evaluated and compared. Numerical results show that the passage with truncated V-shaped ribs is very effective in improving the heat transfer performance with a low pressure drop.}},
author = {{Li, Shian and Xie, Gongnan and Zhang, Weihong and Sundén, Bengt}},
issn = {{1064-2285}},
keywords = {{heat transfer; rib; continuous; truncated; computation}},
language = {{eng}},
number = {{6}},
pages = {{573--590}},
publisher = {{Begell House}},
series = {{Heat Transfer Research}},
title = {{Numerical Predictions of Pressure Drop and Heat Transfer in a Blade Internal Cooling Passage with Continuous/Truncated Ribs}},
url = {{http://dx.doi.org/10.1615/HeatTransRes.2012005855}},
doi = {{10.1615/HeatTransRes.2012005855}},
volume = {{43}},
year = {{2012}},
}