Film cooling and heat transfer from a combination of two rows of simple and or compound angle holes in inline and or staggered configuration

Citation
Ba. Jubran et By. Maiteh, Film cooling and heat transfer from a combination of two rows of simple and or compound angle holes in inline and or staggered configuration, HEAT MASS T, 34(6), 1999, pp. 495-502
Citations number
10
Categorie Soggetti
Mechanical Engineering
Journal title
HEAT AND MASS TRANSFER
ISSN journal
09477411 → ACNP
Volume
34
Issue
6
Year of publication
1999
Pages
495 - 502
Database
ISI
SICI code
0947-7411(199904)34:6<495:FCAHTF>2.0.ZU;2-K
Abstract
This paper describes the results of an experimental investigation into the film cooling effectiveness and heat transfer characteristics of two stagger ed injection rows of either a combination of one row of simple angle holes with another row of compound angle holes or with both rows of compound angl e holes. The effect of using various injections holes arrangements as well as the relative location of the compound angle holes row to the simple angl e holes row have been investigated for different blowing rates. Using combi nation of one row of downstream compound angle holes with another upstream simple injection holes row provides a significant increase in the film cool ing protection over a flat plate surface, over that obtained from either tw o rows of only simple injections holes or compound angle holes.