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Assessment of numerical modelling for steady state jet impingement cooling in different geometries

Title:

Assessment of numerical modelling for steady state jet impingement cooling in different geometries

Ghazihesami, Rouzbeh (2015) Assessment of numerical modelling for steady state jet impingement cooling in different geometries. Masters thesis, Concordia University.

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Abstract

In this thesis, the suitability of CFD to evaluate and predict physical phenomena in lieu of experimental work in a jet impingement application is assessed. Previous experimental work looked at the effectiveness of different geometries in improving jet impingement cooling. This work was used to construct a numerical model of two of the geometries each running at three different Reynolds numbers. First a turbulence model is selected based on a simple 2D axisymmetric jet impingement case. The k-ω SST model produced the most accurate results and was thus selected. The model was then used to simulate jet impingement in both a basic flatplate and a corrugated geometry. The corrugated geometry was expected to improve cooling performance. The trend was seen in the numerical results, particularly at higher velocities and at the most downstream jets. The trend replicates that of the experimental results, with negligible impact of the corrugations before the 3-4th jet.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Mechanical and Industrial Engineering
Item Type:Thesis (Masters)
Authors:Ghazihesami, Rouzbeh
Institution:Concordia University
Degree Name:M.A. Sc.
Program:Mechanical Engineering
Date:31 November 2015
Thesis Supervisor(s):Dick Ng, Hoi
Keywords:Jet impingement cooling, numerical, cfd, turbulence modeling, validation
ID Code:980804
Deposited By: ROUZBEH GHAZI-HESAMI
Deposited On:15 Jun 2016 19:31
Last Modified:18 Jan 2018 17:52

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