LAPSE:2020.0377
Published Article
LAPSE:2020.0377
Optimization of a Confined Jet Geometry to Improve Film Cooling Performance Using Response Surface Methodology (RSM)
April 14, 2020
This study investigates the interrelated parameters affecting heat transfer from a hot gas flowing on a flat plate while cool air is injected adjacent to the flat plate. The cool air forms an air blanket that shield the flat plate from the hot gas flow. The cool air is blown from a confined jet and is simulated using a two-dimensional numerical model under three variable parameters; namely, blowing ratio, jet angle and density ratio. The interrelations between these parameters are evaluated to properly understand their effects on heat transfer. The analyses are conducted using ANSYS-Fluent, and the performance of the air blanket is reported using local and average adiabatic film cooling effectiveness (AFCE). The interrelation between these parameters and the AFCE is established through a statistical method known as response surface methodology (RSM). The RSM model shows that the AFCE has a second order relation with the blowing ratio and a first order relation with both jet angle and density ratio. Also, it is found that the highest average AFCE is reached at an injection angle of 30 degree, a density ratio of 1.2 and a blowing ratio of 1.8.
Record ID
Keywords
adiabatic film cooling effectiveness, blowing ratio, density ratio, jet angle, response surface methodology
Subject
Suggested Citation
Al-Hemyari M, Hamdan MO, Orhan MF. Optimization of a Confined Jet Geometry to Improve Film Cooling Performance Using Response Surface Methodology (RSM). (2020). LAPSE:2020.0377
Author Affiliations
Al-Hemyari M: Department of Mechanical Engineering, American University of Sharjah, Sharjah 26666, UAE
Hamdan MO: Department of Mechanical Engineering, American University of Sharjah, Sharjah 26666, UAE [ORCID]
Orhan MF: Department of Mechanical Engineering, American University of Sharjah, Sharjah 26666, UAE
Hamdan MO: Department of Mechanical Engineering, American University of Sharjah, Sharjah 26666, UAE [ORCID]
Orhan MF: Department of Mechanical Engineering, American University of Sharjah, Sharjah 26666, UAE
Journal Name
Processes
Volume
8
Issue
2
Article Number
E232
Year
2020
Publication Date
2020-02-18
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr8020232, Publication Type: Journal Article
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Published Article
LAPSE:2020.0377
This Record
External Link
doi:10.3390/pr8020232
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501
Version History
[v1] (Original Submission)
Apr 14, 2020
Verified by curator on
Apr 14, 2020
This Version Number
v1
Citations
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This Version
URL Here
https://psecommunity.org/LAPSE:2020.0377
Original Submitter
Calvin Tsay
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