Volume 19, Issue 5 (IJES 2008)                   IJIEPR 2008, 19(5): 89-96 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Bazdidi Tehrani F, Feizollahi H. Numerical Analysis of Opposed Rows of Coolant Jets Injected into a Heated Crossflow . IJIEPR 2008; 19 (5) :89-96
URL: http://ijiepr.iust.ac.ir/article-1-130-en.html
1- , bazdid@iust.ac.ir
Abstract:   (47739 Views)

The mixing characteristics of coolant air jets with the hot gas exiting the gas turbine combustor’s primary zone is of major importance to the combustor exit temperature profile. In the present work, a three dimensional numerical simulation on the basis of the finite volume method was developed. The aim was to investigate the penetration and mixing characteristics of directly opposed rows of coolant jets injected normally into a heated confined cross stream. The ability of the standard and the realizable κ-ε turbulence models in the prediction of formation of dimensionless temperature profiles, downstream of jets, was evaluated. The effect of jet-to-mainstream momentum flux ratio, in the lower and upper limits of 25.0 and 60.0, at a fixed channel height-to-hole diameter ratio of 12.5 and a periodic distance of adjacent jets of 2 cm, was investigated. Also the effect of periodic distance in the range of 1-3 cm on the temperature profile was studied. Comparisons between the present numerical results on the temperature profiles and the experimental data of Wittig et al. [13] demonstrated reasonable agreement.


Full-Text [PDF 512 kb]   (2274 Downloads)    
Type of Study: Research | Subject: Other Related Subject
Received: 2010/07/19 | Published: 2008/07/15

Add your comments about this article : Your username or Email:

Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.