Application of potential theory to steady flow past two cylinders in tandem arrangement
The wake flow patterns associated with flow past a cylinder and a cylinder-pair in tandem configuration are revisited, compared, and evaluated with respect to the streamline patterns generated based on potential flow theory and superposition of various potential flow elements. The wakes, which are v...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/104024 http://hdl.handle.net/10220/19407 |
| _version_ | 1826116949902360576 |
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| author | Gao, Yangyang Tan, Danielle S Hao, Zhiyong Wang, Xikun Tan, Soon Keat |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Gao, Yangyang Tan, Danielle S Hao, Zhiyong Wang, Xikun Tan, Soon Keat |
| author_sort | Gao, Yangyang |
| collection | NTU |
| description | The wake flow patterns associated with flow past a cylinder and a cylinder-pair in tandem configuration are revisited, compared, and evaluated with respect to the streamline patterns generated based on potential flow theory and superposition of various potential flow elements. The wakes, which are vortex shedding in the lee of the cylinder(s), are reproduced by placing pairs of equal but opposite circulation elements in the potential flow field. The strength of the circulation elements determines the size of the vortices produced. The streamline patterns of flow past a pair of unequal cylinders in tandem configuration provide an indirect means to establish the threshold condition for the wake transition from that of a single bluff body to alternating reattachment behavior. This threshold condition is found to be a function of the diameter ratio, (diameters and , ), spacing ratio, (centre-to-centre distance, , to cylinder diameter, ), and equivalent incident flow speed, A unique functional relationship (, , ) of this threshold condition is established. |
| first_indexed | 2024-10-01T04:19:47Z |
| format | Journal Article |
| id | ntu-10356/104024 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:19:47Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1040242020-03-07T11:45:55Z Application of potential theory to steady flow past two cylinders in tandem arrangement Gao, Yangyang Tan, Danielle S Hao, Zhiyong Wang, Xikun Tan, Soon Keat School of Civil and Environmental Engineering Maritime Research Centre Nanyang Environment and Water Research Institute DRNTU::Engineering::Civil engineering The wake flow patterns associated with flow past a cylinder and a cylinder-pair in tandem configuration are revisited, compared, and evaluated with respect to the streamline patterns generated based on potential flow theory and superposition of various potential flow elements. The wakes, which are vortex shedding in the lee of the cylinder(s), are reproduced by placing pairs of equal but opposite circulation elements in the potential flow field. The strength of the circulation elements determines the size of the vortices produced. The streamline patterns of flow past a pair of unequal cylinders in tandem configuration provide an indirect means to establish the threshold condition for the wake transition from that of a single bluff body to alternating reattachment behavior. This threshold condition is found to be a function of the diameter ratio, (diameters and , ), spacing ratio, (centre-to-centre distance, , to cylinder diameter, ), and equivalent incident flow speed, A unique functional relationship (, , ) of this threshold condition is established. Published version 2014-05-20T07:08:29Z 2019-12-06T21:24:50Z 2014-05-20T07:08:29Z 2019-12-06T21:24:50Z 2014 2014 Journal Article Gao, Y., Tan, D. S., Hao, Z., Wang, X., & Tan, S. K. (2014). Application of Potential Theory to Steady Flow Past Two Cylinders in Tandem Arrangement. Mathematical Problems in Engineering, 2014, 495179-. 1024-123X https://hdl.handle.net/10356/104024 http://hdl.handle.net/10220/19407 10.1155/2014/495179 en Mathematical problems in engineering © 2014 The Author(s). This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering Gao, Yangyang Tan, Danielle S Hao, Zhiyong Wang, Xikun Tan, Soon Keat Application of potential theory to steady flow past two cylinders in tandem arrangement |
| title | Application of potential theory to steady flow past two cylinders in tandem arrangement |
| title_full | Application of potential theory to steady flow past two cylinders in tandem arrangement |
| title_fullStr | Application of potential theory to steady flow past two cylinders in tandem arrangement |
| title_full_unstemmed | Application of potential theory to steady flow past two cylinders in tandem arrangement |
| title_short | Application of potential theory to steady flow past two cylinders in tandem arrangement |
| title_sort | application of potential theory to steady flow past two cylinders in tandem arrangement |
| topic | DRNTU::Engineering::Civil engineering |
| url | https://hdl.handle.net/10356/104024 http://hdl.handle.net/10220/19407 |
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