Abstract
This paper describes the experimental study on the process of the disappearance of the arch vortices shedding from a square cylinder of finite length, and the accompanying changes in the turbulent near wake, as a function of the aspect ratio of a square cylinder. The experiment was carried out in a circuit type wind tunnel having a 200mm × 200mm working section of 2000mm length at the Reynolds number 9200. The time-mean velocity and turbulence intensities were measured by Laser-Doppler Velocimeter. Furthermore the vortices formation was observed by flow visualization in a water channel at Re=4600. Consequently, the details of flow pattern in the turbulent near wake behind a square cylinder were obtained with the information of shedding arch vortices and horse-shoe vortices. The range of aspect ratio of shedding arch vortices seems to be more than H/D=0.7, while the horse-shoe vortices are generated around a square cylinder for all aspect ratios in this experiment.
| Original language | English |
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| Pages | 195-216 |
| Number of pages | 22 |
| Publication status | Published - 1995 Dec 1 |
| Event | Proceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition - Hilton Head, SC, USA Duration: 1995 Aug 13 → 1995 Aug 18 |
Other
| Other | Proceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition |
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| City | Hilton Head, SC, USA |
| Period | 95/8/13 → 95/8/18 |
ASJC Scopus subject areas
- Engineering(all)