Experimental thermal field measurements of film cooling with twisted holes

An experimental study has been conducted to study the heat transfer characteristics within corrugation film cooling holes of different cross section area square, rectangular and circular. The experiments investigation for this paper have been performed using a thermal IR camera, and the flow field h...

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Main Authors: Abdul Wahid, Ammar Fakhir, Mat Lazim, Tholudin, Saat, Aminuddin, Mohd. Jaafar, Mohammad Nazri, Kareem, Zaid Sattar
Format: Article
Published: Praise Worthy Prize 2015
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Online Access:http://eprints.utm.my/id/eprint/55177/
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Institution: Universiti Teknologi Malaysia
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spelling my.utm.551772017-02-15T07:44:33Z http://eprints.utm.my/id/eprint/55177/ Experimental thermal field measurements of film cooling with twisted holes Abdul Wahid, Ammar Fakhir Mat Lazim, Tholudin Saat, Aminuddin Mohd. Jaafar, Mohammad Nazri Kareem, Zaid Sattar TJ Mechanical engineering and machinery An experimental study has been conducted to study the heat transfer characteristics within corrugation film cooling holes of different cross section area square, rectangular and circular. The experiments investigation for this paper have been performed using a thermal IR camera, and the flow field has been analyzed by numerical calculation using a commercial code (FLUENT) was utilized and the SST k- ω turbulence model. The effect of blowing ratio (0.5, 1.0, 1.5 and 2.0) and twisted film cooling holes angles (90°, 180°, 270° and 360°) were also considered. A duct flow enters into a twisted film cooling hole in a cross direction. For the corrugation film cooling hole, it is observed that the reattachment of separated flow and the vortices within the hole enhance considerably the heat/mass transfer around the holes entrance region. Results showed that the twisted film cooling holes performed better than the cylindrical hole. Also, the film cooling effectiveness and heat transfer coefficient for the corrugation holes were strongly affected by the angle of twisted film cooling holes of the corrugation hole. Results show the heat transfer enhancement range of (1.5-2.7) time of smooth film cooling holes. Experimental and numerical calculation of film cooling effectiveness is validated with pervious experimental results Praise Worthy Prize 2015-09 Article PeerReviewed Abdul Wahid, Ammar Fakhir and Mat Lazim, Tholudin and Saat, Aminuddin and Mohd. Jaafar, Mohammad Nazri and Kareem, Zaid Sattar (2015) Experimental thermal field measurements of film cooling with twisted holes. International Review of Aerospace Engineering, 8 (3). pp. 86-94. ISSN 1973-7459
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Abdul Wahid, Ammar Fakhir
Mat Lazim, Tholudin
Saat, Aminuddin
Mohd. Jaafar, Mohammad Nazri
Kareem, Zaid Sattar
Experimental thermal field measurements of film cooling with twisted holes
description An experimental study has been conducted to study the heat transfer characteristics within corrugation film cooling holes of different cross section area square, rectangular and circular. The experiments investigation for this paper have been performed using a thermal IR camera, and the flow field has been analyzed by numerical calculation using a commercial code (FLUENT) was utilized and the SST k- ω turbulence model. The effect of blowing ratio (0.5, 1.0, 1.5 and 2.0) and twisted film cooling holes angles (90°, 180°, 270° and 360°) were also considered. A duct flow enters into a twisted film cooling hole in a cross direction. For the corrugation film cooling hole, it is observed that the reattachment of separated flow and the vortices within the hole enhance considerably the heat/mass transfer around the holes entrance region. Results showed that the twisted film cooling holes performed better than the cylindrical hole. Also, the film cooling effectiveness and heat transfer coefficient for the corrugation holes were strongly affected by the angle of twisted film cooling holes of the corrugation hole. Results show the heat transfer enhancement range of (1.5-2.7) time of smooth film cooling holes. Experimental and numerical calculation of film cooling effectiveness is validated with pervious experimental results
format Article
author Abdul Wahid, Ammar Fakhir
Mat Lazim, Tholudin
Saat, Aminuddin
Mohd. Jaafar, Mohammad Nazri
Kareem, Zaid Sattar
author_facet Abdul Wahid, Ammar Fakhir
Mat Lazim, Tholudin
Saat, Aminuddin
Mohd. Jaafar, Mohammad Nazri
Kareem, Zaid Sattar
author_sort Abdul Wahid, Ammar Fakhir
title Experimental thermal field measurements of film cooling with twisted holes
title_short Experimental thermal field measurements of film cooling with twisted holes
title_full Experimental thermal field measurements of film cooling with twisted holes
title_fullStr Experimental thermal field measurements of film cooling with twisted holes
title_full_unstemmed Experimental thermal field measurements of film cooling with twisted holes
title_sort experimental thermal field measurements of film cooling with twisted holes
publisher Praise Worthy Prize
publishDate 2015
url http://eprints.utm.my/id/eprint/55177/
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