Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation

This study deals numerical study of the effect of anti vortex generator (AVG) on the film cooling performance of a circular cooling hole which has diameter (d = 20 mm) on a flat plate. The interaction between the jet cooling air and mainstream will result kidney vortex which will eliminate the fi...

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Main Author: Abu Zarida, Abdallah Ali
Format: Thesis
Language:English
English
English
Published: 2015
Subjects:
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http://eprints.uthm.edu.my/1246/1/24p%20ABDALLAH%20ALI%20ABU%20ZARIDA.pdf
http://eprints.uthm.edu.my/1246/3/ABDALLAH%20ALI%20ABU%20ZARIDA%20WATERMARK.pdf
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spelling my-uthm-ep.12462021-09-30T06:40:53Z Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation 2015-07 Abu Zarida, Abdallah Ali TJ751-805 Miscellaneous motors and engines Including gas, gasoline, diesel engines This study deals numerical study of the effect of anti vortex generator (AVG) on the film cooling performance of a circular cooling hole which has diameter (d = 20 mm) on a flat plate. The interaction between the jet cooling air and mainstream will result kidney vortex which will eliminate the film cooling effectiveness. Two types of AVG with different heights (H = 0.5 d and 0.25 d) are designed to eliminate the kidney vortex and investigate best film cooling effectiveness, where each of them is mounted to the flat plate upstream of the cooling hole by changing its lateral positions (A = 0.0 d, 0.25 d, 0.5 d and 0.75 d) with respect to the hole centerline and for each type has different distance respect to hole centerline. The changing of blowing ratio (BR = 0.5-1.5) was considered in this study. As for the validation, the present study was compared with the previous research done by other researchers using the results obtained from experimental data. The steady turbulence model shear stress transport (SST) that was used to simulate a film cooling configuration. The results have been presented in terms of laterally averaged film cooling comparison graphs, velocity field on x/d = 3.0, non-dimensional temperature on x/d = 3.0 and the vorticity on x/d = 3.0 which explained how the results obtained. Cases 04 and 07 gave the best positions for AVG where case 04 gave wide covered for laterally average film cooling effectiveness , while case 07 gave the highest expand distribution and the maximum value for film cooling effectiveness . 2015-07 Thesis http://eprints.uthm.edu.my/1246/ http://eprints.uthm.edu.my/1246/2/ABDALLAH%20ALI%20ABU%20ZARIDA%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1246/1/24p%20ABDALLAH%20ALI%20ABU%20ZARIDA.pdf text en public http://eprints.uthm.edu.my/1246/3/ABDALLAH%20ALI%20ABU%20ZARIDA%20WATERMARK.pdf text en validuser mphil masters UTHM Faculty of Mechanical and Manufacturing Engineering
institution Universiti Tun Hussein Onn Malaysia
collection UTHM Institutional Repository
language English
English
English
topic TJ751-805 Miscellaneous motors and engines Including gas
gasoline
diesel engines
spellingShingle TJ751-805 Miscellaneous motors and engines Including gas
gasoline
diesel engines
Abu Zarida, Abdallah Ali
Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation
description This study deals numerical study of the effect of anti vortex generator (AVG) on the film cooling performance of a circular cooling hole which has diameter (d = 20 mm) on a flat plate. The interaction between the jet cooling air and mainstream will result kidney vortex which will eliminate the film cooling effectiveness. Two types of AVG with different heights (H = 0.5 d and 0.25 d) are designed to eliminate the kidney vortex and investigate best film cooling effectiveness, where each of them is mounted to the flat plate upstream of the cooling hole by changing its lateral positions (A = 0.0 d, 0.25 d, 0.5 d and 0.75 d) with respect to the hole centerline and for each type has different distance respect to hole centerline. The changing of blowing ratio (BR = 0.5-1.5) was considered in this study. As for the validation, the present study was compared with the previous research done by other researchers using the results obtained from experimental data. The steady turbulence model shear stress transport (SST) that was used to simulate a film cooling configuration. The results have been presented in terms of laterally averaged film cooling comparison graphs, velocity field on x/d = 3.0, non-dimensional temperature on x/d = 3.0 and the vorticity on x/d = 3.0 which explained how the results obtained. Cases 04 and 07 gave the best positions for AVG where case 04 gave wide covered for laterally average film cooling effectiveness , while case 07 gave the highest expand distribution and the maximum value for film cooling effectiveness .
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Abu Zarida, Abdallah Ali
author_facet Abu Zarida, Abdallah Ali
author_sort Abu Zarida, Abdallah Ali
title Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation
title_short Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation
title_full Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation
title_fullStr Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation
title_full_unstemmed Investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation
title_sort investigation of film cooling effectiveness from cylindrical cooling hole with anti vortex generator by numerical simulation
granting_institution UTHM
granting_department Faculty of Mechanical and Manufacturing Engineering
publishDate 2015
url http://eprints.uthm.edu.my/1246/2/ABDALLAH%20ALI%20ABU%20ZARIDA%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/1246/1/24p%20ABDALLAH%20ALI%20ABU%20ZARIDA.pdf
http://eprints.uthm.edu.my/1246/3/ABDALLAH%20ALI%20ABU%20ZARIDA%20WATERMARK.pdf
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