Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles
Microbubbles (MB) injection method is undeniably a promising drag reduction device in water transport. However, the mechanism of drag reduction by MB is complicated and poorly known. This paper presents the effect of Reynolds number on the frictional reduction by MB in a piping system. A fluid frict...
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| Format: | Conference or Workshop Item |
| Language: | English |
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IOP Publishing
2020
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| Online Access: | https://umpir.ump.edu.my/id/eprint/29504/ |
| _version_ | 1848827282427215872 |
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| author | Erny Afiza, Alias M. N. F., Saniman Fatimah, Dzaharudin |
| author_facet | Erny Afiza, Alias M. N. F., Saniman Fatimah, Dzaharudin |
| author_sort | Erny Afiza, Alias |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Microbubbles (MB) injection method is undeniably a promising drag reduction device in water transport. However, the mechanism of drag reduction by MB is complicated and poorly known. This paper presents the effect of Reynolds number on the frictional reduction by MB in a piping system. A fluid friction apparatus and a hydraulic bench were used to execute the experiment. To verify the ability of MB in reducing frictional loss, experiments were carried out in two conditions, without MB and with MB. In order to investigate the effect of turbulent flows, experiments were performed in three different flow rates ranging from 9 × 10-5 to 0.008 m3 /s in two types of pipe diameter (20 mm and 33 mm) to yield different Reynolds number. As the results, MB able to reduce frictional loss in pipe up to 20%. However, regarding the Reynolds number effect, no apparent tendency of the frictional reduction efficiency can be observed between Reynolds number 4000-9500. Overall, MB holds potential in reducing pipe frictional loss in turbulent flow. However, further study in wider range of Reynolds number is required to comprehend its tendency. |
| first_indexed | 2025-11-15T03:58:14Z |
| format | Conference or Workshop Item |
| id | ump-29504 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:58:14Z |
| publishDate | 2020 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-295042025-10-16T06:59:36Z https://umpir.ump.edu.my/id/eprint/29504/ Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles Erny Afiza, Alias M. N. F., Saniman Fatimah, Dzaharudin T Technology (General) TJ Mechanical engineering and machinery Microbubbles (MB) injection method is undeniably a promising drag reduction device in water transport. However, the mechanism of drag reduction by MB is complicated and poorly known. This paper presents the effect of Reynolds number on the frictional reduction by MB in a piping system. A fluid friction apparatus and a hydraulic bench were used to execute the experiment. To verify the ability of MB in reducing frictional loss, experiments were carried out in two conditions, without MB and with MB. In order to investigate the effect of turbulent flows, experiments were performed in three different flow rates ranging from 9 × 10-5 to 0.008 m3 /s in two types of pipe diameter (20 mm and 33 mm) to yield different Reynolds number. As the results, MB able to reduce frictional loss in pipe up to 20%. However, regarding the Reynolds number effect, no apparent tendency of the frictional reduction efficiency can be observed between Reynolds number 4000-9500. Overall, MB holds potential in reducing pipe frictional loss in turbulent flow. However, further study in wider range of Reynolds number is required to comprehend its tendency. IOP Publishing 2020 Conference or Workshop Item PeerReviewed pdf en cc_by_4 https://umpir.ump.edu.my/id/eprint/29504/1/14.%20Fundamental%20study%20on%20the%20effect%20of%20Reynolds%20number.pdf Erny Afiza, Alias and M. N. F., Saniman and Fatimah, Dzaharudin (2020) Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles. In: IOP Conference Series: Materials Science and Engineering. 5th UTP-UMP-UAF Symposium on Energy Systems 2019, SES 2019 , 1-2 Oct 2019 , Kuantan, Malaysia. pp. 1-6., 863 (012065). ISSN 1757-8981 (Print), 1757-899X (Online) (Published) https://doi.org/10.1088/1757-899X/863/1/012065 |
| spellingShingle | T Technology (General) TJ Mechanical engineering and machinery Erny Afiza, Alias M. N. F., Saniman Fatimah, Dzaharudin Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles |
| title | Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles |
| title_full | Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles |
| title_fullStr | Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles |
| title_full_unstemmed | Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles |
| title_short | Fundamental study on the effect of Reynolds number on pipe frictional loss reduction by microbubbles |
| title_sort | fundamental study on the effect of reynolds number on pipe frictional loss reduction by microbubbles |
| topic | T Technology (General) TJ Mechanical engineering and machinery |
| url | https://umpir.ump.edu.my/id/eprint/29504/ https://umpir.ump.edu.my/id/eprint/29504/ |