Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements

The need to determine affordable and environmentally friendly methods of reducing skin friction can be identified as one of the reasons contributing towards the study of the effectiveness of riblet shapes. Water tank experiments were carried out to optimize the shape and dimensions of microstructure...

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Main Authors:	Abdulbari, Hayder A., Mahammed, Hassan D., Zulkefli, Yaacob, Mahmood, Wafaa K.
Format:	Article
Language:	English
Published:	Begel House Inc. 2017
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/19437/ http://umpir.ump.edu.my/id/eprint/19437/ http://umpir.ump.edu.my/id/eprint/19437/ http://umpir.ump.edu.my/id/eprint/19437/1/fkksa-abdulbari-2017-elucidation.pdf

id	ump-19437
recordtype	eprints
spelling	ump-194372018-05-23T05:14:24Z http://umpir.ump.edu.my/id/eprint/19437/ Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements Abdulbari, Hayder A. Mahammed, Hassan D. Zulkefli, Yaacob Mahmood, Wafaa K. TP Chemical technology The need to determine affordable and environmentally friendly methods of reducing skin friction can be identified as one of the reasons contributing towards the study of the effectiveness of riblet shapes. Water tank experiments were carried out to optimize the shape and dimensions of microstructure grooves over a flat plate. The use of organized microstructures on channel walls is proposed to obtain lower values of pressure losses on smooth walls. Three shapes of microstructure grooves were investigated, with same groove height (600 μm) and five spacing dimensions (600, 750, 1000, 1500 μm), in water flows with velocities of up to 0.4 m/s. This was done for all selected types of riblet, which are fixed with the direction aligned with the flow. The experimental results showed that the size and shape of the riblets can massively incubate some of the turbulent structures formed on the surface and that will lead to a more controllable flow environment, which can result in drag reduction. Begel House Inc. 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/19437/1/fkksa-abdulbari-2017-elucidation.pdf Abdulbari, Hayder A. and Mahammed, Hassan D. and Zulkefli, Yaacob and Mahmood, Wafaa K. (2017) Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements. International Journal of Fluid Mechanics Research, 44 (2). pp. 131-153. ISSN 2152-5102 http://dx.doi.org/10.1615/InterJFluidMechRes.2017016595 DOI: 10.1615/InterJFluidMechRes.2017016595
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. Mahammed, Hassan D. Zulkefli, Yaacob Mahmood, Wafaa K. Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements
description	The need to determine affordable and environmentally friendly methods of reducing skin friction can be identified as one of the reasons contributing towards the study of the effectiveness of riblet shapes. Water tank experiments were carried out to optimize the shape and dimensions of microstructure grooves over a flat plate. The use of organized microstructures on channel walls is proposed to obtain lower values of pressure losses on smooth walls. Three shapes of microstructure grooves were investigated, with same groove height (600 μm) and five spacing dimensions (600, 750, 1000, 1500 μm), in water flows with velocities of up to 0.4 m/s. This was done for all selected types of riblet, which are fixed with the direction aligned with the flow. The experimental results showed that the size and shape of the riblets can massively incubate some of the turbulent structures formed on the surface and that will lead to a more controllable flow environment, which can result in drag reduction.
format	Article
author	Abdulbari, Hayder A. Mahammed, Hassan D. Zulkefli, Yaacob Mahmood, Wafaa K.
author_facet	Abdulbari, Hayder A. Mahammed, Hassan D. Zulkefli, Yaacob Mahmood, Wafaa K.
author_sort	Abdulbari, Hayder A.
title	Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements
title_short	Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements
title_full	Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements
title_fullStr	Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements
title_full_unstemmed	Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements
title_sort	elucidation of longitudinally grooved-riblets drag reduction performance using pressure drop measurements
publisher	Begel House Inc.
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/19437/ http://umpir.ump.edu.my/id/eprint/19437/ http://umpir.ump.edu.my/id/eprint/19437/ http://umpir.ump.edu.my/id/eprint/19437/1/fkksa-abdulbari-2017-elucidation.pdf
first_indexed	2023-09-18T22:27:44Z
last_indexed	2023-09-18T22:27:44Z
_version_	1777416079033761792

Elucidation of Longitudinally Grooved-Riblets Drag Reduction Performance using Pressure Drop Measurements

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