| 整流网对水槽流场品质的作用 |
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| 引用本文： | 王晋军,虞孝生,连淇祥.整流网对水槽流场品质的作用[J].航空学报,1993,14(5):301-303. |
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| 作者姓名： | 王晋军 虞孝生 连淇祥 |
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| 作者单位： | 北京航空航天大学流体力学研究所，北京航空航天大学流体力学研究所，北京航空航天大学流体力学研究所 北京 100083，北京 100083，北京 100083 |
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| 摘 要： | 整流网对降低水流湍流度有明显作用。在本实验条件下,加网后一般可使湍流度降低50％～70％;此外能极大地改善湍流度沿垂线的分布,使之趋于均匀。经比较发现40目网对提高水流品质效果最佳,其相应的密实度σ=0.3,和他人在风洞实验中建议σ<0.3相当吻合。
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| 关 键 词： | 流场 水槽 湍流度 整流网 |
EFFECT OF SCREEN ON THE BEHAVIOR OF FLOW FIELDS IN WATER CHANNEL |
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| Wang Jin-jun,Yu Xiao-sheng,Lian Qi-xiang.EFFECT OF SCREEN ON THE BEHAVIOR OF FLOW FIELDS IN WATER CHANNEL[J].Acta Aeronautica et Astronautica Sinica,1993,14(5):301-303. |
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| Authors: | Wang Jin-jun Yu Xiao-sheng Lian Qi-xiang |
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| Institution: | Fluid Mechanics Institute, Beijing University of Aeronautics and Astronautics, Beijing, 100083 |
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| Abstract: | The experimental results indicate that the screens can significantly reduce the flow turbulence intensity. In the present study, screens can generally reduce the flow turbulence intensity by as much as 50% to 70%, greatly improve its distribution in the vertical direction, and make it uniform. By analysing the experimental results, it is found that the screen with solidity σ = 0.3 can efficiently improve the waterflow, and the value agrees well with σ<0.3 suggested by other workers in wind tunnel experiments. |
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| Keywords: | flow fidlds water channel turbulence gauze screens |
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