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Effect of an upstream unconnected bulge on film cooling

Li, Qianqian; Wang, Jin LU ; Min, Chunhua; Tian, Ke; Tian, Liting and Sundén, Bengt LU (2017) In Chemical Engineering Transactions 61. p.223-228
Abstract

Film cooling technology is commonly used in a cooling system of gas turbines. For different upstream bulge configurations, the unconnected and connected configurations were used to investigate the film cooling effectiveness and downstream dimensionless temperature distributions in this paper. Moreover, the effect of the blowing ratio was analyzed by using the computational fluid mechanics. The results show that a bulge configuration located upstream the film hole shows more uniform film cooling effectiveness, resulting in an enhancement of the lateral cooling effectiveness. The film cooling effectiveness for the unconnected bulge configuration slightly decreases along the centerline.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Engineering Transactions
volume
61
pages
6 pages
publisher
AIDIC ServizuI SRL
external identifiers
  • scopus:85030749301
ISSN
1974-9791
DOI
10.3303/CET1761035
language
English
LU publication?
yes
id
ad8393c1-5be5-4f36-8e91-111e0837a2de
date added to LUP
2017-10-18 09:06:28
date last changed
2018-01-07 12:22:52
@article{ad8393c1-5be5-4f36-8e91-111e0837a2de,
  abstract     = {<p>Film cooling technology is commonly used in a cooling system of gas turbines. For different upstream bulge configurations, the unconnected and connected configurations were used to investigate the film cooling effectiveness and downstream dimensionless temperature distributions in this paper. Moreover, the effect of the blowing ratio was analyzed by using the computational fluid mechanics. The results show that a bulge configuration located upstream the film hole shows more uniform film cooling effectiveness, resulting in an enhancement of the lateral cooling effectiveness. The film cooling effectiveness for the unconnected bulge configuration slightly decreases along the centerline.</p>},
  author       = {Li, Qianqian and Wang, Jin and Min, Chunhua and Tian, Ke and Tian, Liting and Sundén, Bengt},
  issn         = {1974-9791},
  language     = {eng},
  pages        = {223--228},
  publisher    = {AIDIC ServizuI SRL},
  series       = {Chemical Engineering Transactions},
  title        = {Effect of an upstream unconnected bulge on film cooling},
  url          = {http://dx.doi.org/10.3303/CET1761035},
  volume       = {61},
  year         = {2017},
}