INFLUENCE OF ARRANGEMENT POSITION ON FLOW DOWNSTREAM OF BLUFF BODIES ARRANGED SIDE BY SIDE
碩士 === 國立中正大學 === 機械系 === 91 === Abstract The present paper investigates flow characteristics of influence of arrangement position on flow downstream of bluff bodies arranged side by side.The bluff bodies adopted include two-dimensional flat plates,square cylinders,and circular cylinders....
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2003
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| Online Access: | http://ndltd.ncl.edu.tw/handle/12127640816320851826 |
| Summary: | 碩士 === 國立中正大學 === 機械系 === 91 === Abstract
The present paper investigates flow characteristics of influence of arrangement position on flow downstream of bluff bodies arranged side by side.The bluff bodies adopted include two-dimensional flat plates,square cylinders,and circular cylinders.
The two-body arrangements are comprised arrangement position of flat plate and square cylinder, flat plate and circular cylinder.Two sets of models are adopted,these being bluff bodies with the same cross-setional dimension but with different vortex shedding frequencies,and bluff bodies with different cross-setional dimension but with the same vortex shedding frequency.
The results demonstrate that the characteristics of flow downstream are significantly related to arrangement position and cross-settional geometry of the bluff body.the gap flow tends to deflect toward the narrow-wake side downstream of the two-body arrangement side by side.The biasing characteristic of the gap flow is relatively unstable as the widths of the wake downstream of each bluff body are nearly the same.
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