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NUMERICAL STUDY OF HEAT TRANSFER ENHANCEMENT DUE TO THE USE OF FRACTAL-SHAPED DESIGN FOR IMPINGEMENT COOLING

ABSTRACT
This paper describes a numerical analysis of a heat transfer enhancement technique that introduces fractal-shaped design for impingement cooling. Based on the gas turbine combustion chamber cooling, a fractal-shaped nozzle is designed for the constant flow area in a single impingement cooling model. The incompressible Reynolds-averaged Navier-Stokes equations are applied to the system using CFD software. The numerical results are compared with the experiment results for array impingement cooling.
KEYWORDS
PAPER SUBMITTED: 2017-03-08
PAPER REVISED: 2017-04-25
PAPER ACCEPTED: 2017-05-08
PUBLISHED ONLINE: 2017-12-02
DOI REFERENCE: https://doi.org/10.2298/TSCI17S1033C
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Supplement 1, PAGES [S33 - S38]
REFERENCES
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© 2017 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence