Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding
Experimental investigations were conducted to address the reduction of vortex-induced vibration (VIV) and mean drag coefficient (Cd mean) acting on the oscillating cylinder fitted with a shroud of various parameters. The effectiveness of the shrouds in suppressing the VIV of a short rigid cylinder w...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier Ltd
2022
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/100959/1/LeeKeeQuen2022_SuppressionofVortexInducedVibrationofaRigidCylinder.pdf |
| _version_ | 1796866973607395328 |
|---|---|
| author | Ramzi, Nur Ain Shafiza Lee, Kee Quen Senga, Hidetaka Kang, Hooi Siang Lim, Meng Hee Mohd. Sukarnoor, Noor Idora |
| author_facet | Ramzi, Nur Ain Shafiza Lee, Kee Quen Senga, Hidetaka Kang, Hooi Siang Lim, Meng Hee Mohd. Sukarnoor, Noor Idora |
| author_sort | Ramzi, Nur Ain Shafiza |
| collection | ePrints |
| description | Experimental investigations were conducted to address the reduction of vortex-induced vibration (VIV) and mean drag coefficient (Cd mean) acting on the oscillating cylinder fitted with a shroud of various parameters. The effectiveness of the shrouds in suppressing the VIV of a short rigid cylinder was investigated by varying the mesh size (B) and mesh thickness (H). The experiments were performed in water flume in NAHRIM and data analysis of Cross-Flow (CF) and In-Line (IL) vibration amplitudes, IL and CF frequencies, mean drag coefficient responses were carried out. Calculation of the laminar boundary layer thickness around a circular cylinder was carried out as a benchmark in deciding the thickness of the mesh. The effect of mesh size and mesh thickness of shrouds was also addressed in this article. From the results obtained, it can be observed that the shroud with mesh size B = 0.2D and mesh thickness H = 0.03D achieved an optimum condition where it was able to suppress the amplitude without increasing Cd mean, with 76.62% of amplitude reduction and 48.40% of Cd mean reduction. |
| first_indexed | 2024-03-05T21:20:12Z |
| format | Article |
| id | utm.eprints-100959 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T21:20:12Z |
| publishDate | 2022 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | utm.eprints-1009592023-05-18T04:59:47Z http://eprints.utm.my/100959/ Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding Ramzi, Nur Ain Shafiza Lee, Kee Quen Senga, Hidetaka Kang, Hooi Siang Lim, Meng Hee Mohd. Sukarnoor, Noor Idora T Technology (General) Experimental investigations were conducted to address the reduction of vortex-induced vibration (VIV) and mean drag coefficient (Cd mean) acting on the oscillating cylinder fitted with a shroud of various parameters. The effectiveness of the shrouds in suppressing the VIV of a short rigid cylinder was investigated by varying the mesh size (B) and mesh thickness (H). The experiments were performed in water flume in NAHRIM and data analysis of Cross-Flow (CF) and In-Line (IL) vibration amplitudes, IL and CF frequencies, mean drag coefficient responses were carried out. Calculation of the laminar boundary layer thickness around a circular cylinder was carried out as a benchmark in deciding the thickness of the mesh. The effect of mesh size and mesh thickness of shrouds was also addressed in this article. From the results obtained, it can be observed that the shroud with mesh size B = 0.2D and mesh thickness H = 0.03D achieved an optimum condition where it was able to suppress the amplitude without increasing Cd mean, with 76.62% of amplitude reduction and 48.40% of Cd mean reduction. Elsevier Ltd 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/100959/1/LeeKeeQuen2022_SuppressionofVortexInducedVibrationofaRigidCylinder.pdf Ramzi, Nur Ain Shafiza and Lee, Kee Quen and Senga, Hidetaka and Kang, Hooi Siang and Lim, Meng Hee and Mohd. Sukarnoor, Noor Idora (2022) Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding. Applied Ocean Research, 123 (NA). pp. 1-15. ISSN 0141-1187 http://dx.doi.org/10.1016/j.apor.2022.103154 DOI : 10.1016/j.apor.2022.103154 |
| spellingShingle | T Technology (General) Ramzi, Nur Ain Shafiza Lee, Kee Quen Senga, Hidetaka Kang, Hooi Siang Lim, Meng Hee Mohd. Sukarnoor, Noor Idora Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding |
| title | Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding |
| title_full | Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding |
| title_fullStr | Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding |
| title_full_unstemmed | Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding |
| title_short | Suppression of vortex-induced vibration of a rigid cylinder using flexible shrouding |
| title_sort | suppression of vortex induced vibration of a rigid cylinder using flexible shrouding |
| topic | T Technology (General) |
| url | http://eprints.utm.my/100959/1/LeeKeeQuen2022_SuppressionofVortexInducedVibrationofaRigidCylinder.pdf |
| work_keys_str_mv | AT ramzinurainshafiza suppressionofvortexinducedvibrationofarigidcylinderusingflexibleshrouding AT leekeequen suppressionofvortexinducedvibrationofarigidcylinderusingflexibleshrouding AT sengahidetaka suppressionofvortexinducedvibrationofarigidcylinderusingflexibleshrouding AT kanghooisiang suppressionofvortexinducedvibrationofarigidcylinderusingflexibleshrouding AT limmenghee suppressionofvortexinducedvibrationofarigidcylinderusingflexibleshrouding AT mohdsukarnoornooridora suppressionofvortexinducedvibrationofarigidcylinderusingflexibleshrouding |