| 表中孔水舌空中碰撞消能试验研究 |
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| 引用本文： | 刁明军,杨永全. 表中孔水舌空中碰撞消能试验研究[J]. 四川大学学报(工程科学版), 2002, 34(2): 13-15 |
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| 作者姓名： | 刁明军 杨永全 |
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| 作者单位： | 四川大学,高速水力学国家重点实验室,四川,成都,610065 |
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| 基金项目： | 四川大学青年科研基金资助项目 |
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| 摘 要： | 通过模型试验，研究了碰撞角和流量比与碰撞消能效果的关系，提出射流碰撞的主要作用在于分散水流，在确定流量比是不必拘泥于流量比等于1的传统思路，采用小股射流碰撞大股主射流，同样能起到分散水流的作用，改善下泄水流进入水垫塘时的入流条件，从而提高碰撞消能效果，试验表明，在碰撞角较大时，中表孔流量经达到0．2时即可使水舌充分散裂。
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| 关 键 词： | 射流碰撞 模型试验 碰撞角 混量比 碰撞消能 表孔 中孔 水舌碰撞 空中碰撞 |
| 文章编号： | 1009-3087(2002)02-0013-03 |
| 修稿时间： | 2001-03-01 |
Experimental Study on Two Jets Impact in Air for Energy Dissipation |
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| DIAO Ming jun,YANG Yong quan. Experimental Study on Two Jets Impact in Air for Energy Dissipation[J]. Journal of Sichuan University (Engineering Science Edition), 2002, 34(2): 13-15 |
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| Authors: | DIAO Ming jun YANG Yong quan |
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| Abstract: | Through model experiments, relation between impact angel and discharge ratio and effect of impact for energy dissipation have been studied in this paper. The result indicates the main function of jet impact in air is to disperse flow. When deciding discharge ratio, it is not necessary to make it equal to 1. The aim of dispersing jet flow can be gotten by colliding large jet flow with small one, which will improve inflow condition of jet flow when it enters the water plunge pool and improve effect of impact for energy dissipation.Experiments show that the jets flow can be fully scattered when the ratio of flood discharge of the middle outlet and the top one reaches 0.2 under the condition of relative bigger impact angel. |
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| Keywords: | jet flow impact energy dissipation. |
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