Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets

The experimental design incorporated to study the response of a turbulent pressure drop fluctuations to differently shaped longitudinal grooves, involved three conformations or structures being triangular, trapezoidal and spaced triangular grooves with height 800 m. The ratios of the groove height t...

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Main Authors:	Abdulbari, Hayder A., Hassan D., Mahammed, Zulkefli, Yaacob, Wafaa, Kamil Mahmood
Format:	Article
Language:	English
Published:	IJENS 2016
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/14737/ http://umpir.ump.edu.my/id/eprint/14737/ http://umpir.ump.edu.my/id/eprint/14737/1/Wall-Pressure%20Fluctuations%20of%20Modified%20Turbulent.pdf

id	ump-14737
recordtype	eprints
spelling	ump-147372018-01-11T07:31:05Z http://umpir.ump.edu.my/id/eprint/14737/ Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets Abdulbari, Hayder A. Hassan D., Mahammed Zulkefli, Yaacob Wafaa, Kamil Mahmood TP Chemical technology The experimental design incorporated to study the response of a turbulent pressure drop fluctuations to differently shaped longitudinal grooves, involved three conformations or structures being triangular, trapezoidal and spaced triangular grooves with height 800 m. The ratios of the groove height to groove space for triangular were: 1, 0.8, 0.6 and 0.4. Experiments were therefore performed at free stream velocity up to 0.44m/sec, which were corresponding to Reynolds number (Re)5.3×. The development of the obtained turbulent layerdownstream of the grooves was then compared with the results from the corresponding smooth-wall case. To conclude, the effect of the spaced triangular riblets on the turbulent characteristics seemed to be more pronounced than the effects of the triangular and trapezoidal riblets. IJENS 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14737/1/Wall-Pressure%20Fluctuations%20of%20Modified%20Turbulent.pdf Abdulbari, Hayder A. and Hassan D., Mahammed and Zulkefli, Yaacob and Wafaa, Kamil Mahmood (2016) Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets. International Journal of Mechanical & Mechatronics Engineering, 16 (1). pp. 23-34. ISSN 2077-124X (Online); 2227-2771 (Print) http://ijens.org/Vol_16_I_01/162001-3737-IJMME-IJENS.pdf
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Abdulbari, Hayder A. Hassan D., Mahammed Zulkefli, Yaacob Wafaa, Kamil Mahmood Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets
description	The experimental design incorporated to study the response of a turbulent pressure drop fluctuations to differently shaped longitudinal grooves, involved three conformations or structures being triangular, trapezoidal and spaced triangular grooves with height 800 m. The ratios of the groove height to groove space for triangular were: 1, 0.8, 0.6 and 0.4. Experiments were therefore performed at free stream velocity up to 0.44m/sec, which were corresponding to Reynolds number (Re)5.3×. The development of the obtained turbulent layerdownstream of the grooves was then compared with the results from the corresponding smooth-wall case. To conclude, the effect of the spaced triangular riblets on the turbulent characteristics seemed to be more pronounced than the effects of the triangular and trapezoidal riblets.
format	Article
author	Abdulbari, Hayder A. Hassan D., Mahammed Zulkefli, Yaacob Wafaa, Kamil Mahmood
author_facet	Abdulbari, Hayder A. Hassan D., Mahammed Zulkefli, Yaacob Wafaa, Kamil Mahmood
author_sort	Abdulbari, Hayder A.
title	Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets
title_short	Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets
title_full	Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets
title_fullStr	Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets
title_full_unstemmed	Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets
title_sort	wall-pressure fluctuations of modified turbulent boundary layer with riblets
publisher	IJENS
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/14737/ http://umpir.ump.edu.my/id/eprint/14737/ http://umpir.ump.edu.my/id/eprint/14737/1/Wall-Pressure%20Fluctuations%20of%20Modified%20Turbulent.pdf
first_indexed	2023-09-18T22:18:49Z
last_indexed	2023-09-18T22:18:49Z
_version_	1777415518105370624

Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets

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