Wall Pressure Signatures of Turbulent Flow Over Longitudinal
Five triangular riblets longitudinal in the streamwise direction have been studied experimentally. The riblets have pick to pick spaced (s) equal to 1000 μm and with groove height to space ratio (h/s) 0.4, 0.6, 0.8 and 1. The tests were conducted in a full turbulence water channel on a flat plate fo...
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| Format: | Conference or Workshop Item |
| Language: | English |
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EDP Sciences
2016
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| Online Access: | http://umpir.ump.edu.my/id/eprint/14544/ http://umpir.ump.edu.my/id/eprint/14544/1/Wall%20pressure%20signatures%20of%20turbulent%20flow%20over%20longitudinal.pdf |
| _version_ | 1848819750268829696 |
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| author | Abdulbari, Hayder A. Mahammed, Hassan D. Zulkefli, Yaacob Wafaa, Kamil Mahmood |
| author_facet | Abdulbari, Hayder A. Mahammed, Hassan D. Zulkefli, Yaacob Wafaa, Kamil Mahmood |
| author_sort | Abdulbari, Hayder A. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Five triangular riblets longitudinal in the streamwise direction have been studied experimentally. The riblets have pick to pick spaced (s) equal to 1000 μm and with groove height to space ratio (h/s) 0.4, 0.6, 0.8 and 1. The tests were conducted in a full turbulence water channel on a flat plate for Reynolds numbers 13000 to 53000 based on channel hydraulic diameter. Pressure drop was measured using pressure transmitter gauge with pressure tap points of 12.7 mm in diameter were provided at the bottom of the channel. The main purpose of the present study is to investigate the response of turbulent flow to longitudinal grooves of triangular shaped riblets and compare the effect of the turbulence structure over smoothed and grooved surfaces with pressure drop measurements. 10.20 was the maximum drag reduction appear at h/s equal to (1). |
| first_indexed | 2025-11-15T01:58:31Z |
| format | Conference or Workshop Item |
| id | ump-14544 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:58:31Z |
| publishDate | 2016 |
| publisher | EDP Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-145442018-01-11T05:43:35Z http://umpir.ump.edu.my/id/eprint/14544/ Wall Pressure Signatures of Turbulent Flow Over Longitudinal Abdulbari, Hayder A. Mahammed, Hassan D. Zulkefli, Yaacob Wafaa, Kamil Mahmood TP Chemical technology Five triangular riblets longitudinal in the streamwise direction have been studied experimentally. The riblets have pick to pick spaced (s) equal to 1000 μm and with groove height to space ratio (h/s) 0.4, 0.6, 0.8 and 1. The tests were conducted in a full turbulence water channel on a flat plate for Reynolds numbers 13000 to 53000 based on channel hydraulic diameter. Pressure drop was measured using pressure transmitter gauge with pressure tap points of 12.7 mm in diameter were provided at the bottom of the channel. The main purpose of the present study is to investigate the response of turbulent flow to longitudinal grooves of triangular shaped riblets and compare the effect of the turbulence structure over smoothed and grooved surfaces with pressure drop measurements. 10.20 was the maximum drag reduction appear at h/s equal to (1). EDP Sciences 2016 Conference or Workshop Item PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/14544/1/Wall%20pressure%20signatures%20of%20turbulent%20flow%20over%20longitudinal.pdf Abdulbari, Hayder A. and Mahammed, Hassan D. and Zulkefli, Yaacob and Wafaa, Kamil Mahmood (2016) Wall Pressure Signatures of Turbulent Flow Over Longitudinal. In: MATEC Web of Conferences: International Conference on Measurement Instrumentation and Electronics (ICMIE 2016) , 6-8 June 2016 , Munich, Germany. pp. 1-5., 75 (01007). ISSN 2261-236X (Published) https://doi.org/10.1051/matecconf/20167501007 |
| spellingShingle | TP Chemical technology Abdulbari, Hayder A. Mahammed, Hassan D. Zulkefli, Yaacob Wafaa, Kamil Mahmood Wall Pressure Signatures of Turbulent Flow Over Longitudinal |
| title | Wall Pressure Signatures of Turbulent Flow Over Longitudinal |
| title_full | Wall Pressure Signatures of Turbulent Flow Over Longitudinal |
| title_fullStr | Wall Pressure Signatures of Turbulent Flow Over Longitudinal |
| title_full_unstemmed | Wall Pressure Signatures of Turbulent Flow Over Longitudinal |
| title_short | Wall Pressure Signatures of Turbulent Flow Over Longitudinal |
| title_sort | wall pressure signatures of turbulent flow over longitudinal |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/14544/ http://umpir.ump.edu.my/id/eprint/14544/ http://umpir.ump.edu.my/id/eprint/14544/1/Wall%20pressure%20signatures%20of%20turbulent%20flow%20over%20longitudinal.pdf |