Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness
This paper investigates a new method of film cooling using swirling coolant flow through a rectangular twisted film cooling holes with spiral corrugated tube. Two different air flows with different temperatures were used in this study. Throughout the investigation, blowing ratio varied from 0.5 to 2...
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my.utm.560522017-02-15T00:38:21Z http://eprints.utm.my/id/eprint/56052/ Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness AbdulWahid, Ammar Fakhir Mat Lazim, Tholudin Saat, Aminuddin Kareem, Zaid Sattar TJ Mechanical engineering and machinery This paper investigates a new method of film cooling using swirling coolant flow through a rectangular twisted film cooling holes with spiral corrugated tube. Two different air flows with different temperatures were used in this study. Throughout the investigation, blowing ratio varied from 0.5 to 2.0 for several configurations of rectangular twisted angle of 0°, 90°, 180°, 270° and 360°. The results of cooling effectiveness obtained were compared against a standard untwisted tube. Results show that the overall thermal effectiveness improved significantly when the temperature difference between the air flows is at 25 degrees. Such improvement is supported by heat transfer enhancement that obtained from 19.7% to 57.4%. Based on these findings, the study concludes that using a specific geometry of film cooling holes with twisted configuration may result in an improve the convective heat transfer coefficien Praise Worthy Prize 2015-05 Article PeerReviewed AbdulWahid, Ammar Fakhir and Mat Lazim, Tholudin and Saat, Aminuddin and Kareem, Zaid Sattar (2015) Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness. International Review of Automatic Control, 8 (3). pp. 244-250. ISSN 1974-6059 |
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TJ Mechanical engineering and machinery AbdulWahid, Ammar Fakhir Mat Lazim, Tholudin Saat, Aminuddin Kareem, Zaid Sattar Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness |
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This paper investigates a new method of film cooling using swirling coolant flow through a rectangular twisted film cooling holes with spiral corrugated tube. Two different air flows with different temperatures were used in this study. Throughout the investigation, blowing ratio varied from 0.5 to 2.0 for several configurations of rectangular twisted angle of 0°, 90°, 180°, 270° and 360°. The results of cooling effectiveness obtained were compared against a standard untwisted tube. Results show that the overall thermal effectiveness improved significantly when the temperature difference between the air flows is at 25 degrees. Such improvement is supported by heat transfer enhancement that obtained from 19.7% to 57.4%. Based on these findings, the study concludes that using a specific geometry of film cooling holes with twisted configuration may result in an improve the convective heat transfer coefficien |
format |
Article |
author |
AbdulWahid, Ammar Fakhir Mat Lazim, Tholudin Saat, Aminuddin Kareem, Zaid Sattar |
author_facet |
AbdulWahid, Ammar Fakhir Mat Lazim, Tholudin Saat, Aminuddin Kareem, Zaid Sattar |
author_sort |
AbdulWahid, Ammar Fakhir |
title |
Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness |
title_short |
Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness |
title_full |
Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness |
title_fullStr |
Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness |
title_full_unstemmed |
Investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness |
title_sort |
investigation of effect holes twisted angle and compound angle of holes on film cooling effectiveness |
publisher |
Praise Worthy Prize |
publishDate |
2015 |
url |
http://eprints.utm.my/id/eprint/56052/ |
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1643653980804349952 |
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13.18916 |