| 寒冷地区无压输水暗渠运行模型试验研究 |
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| 引用本文： | 刘德仁,赖远明,张东,张世民.寒冷地区无压输水暗渠运行模型试验研究[J].冰川冻土,2011,33(6):1323-1329. |
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| 作者姓名： | 刘德仁 赖远明 张东 张世民 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所,甘肃兰州730000／兰州交通大学,甘肃兰州730000;中国科学院寒区旱区环境与工程研究所,甘肃兰州,730000;甘肃省水利水电勘测设计研究院,甘肃兰州,730000 |
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| 基金项目： | 国家自然科学基金项目(40730736;40821001);中国科学院西部行动计划项目(KZCX2-XB2-10);冻土工程国家重点实验室自主项目(SKLFSE-ZY-03)资助 |
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| 摘 要： | 根据我国北方寒冷地区某无压输水暗渠工程实际,通过在室内环境箱中进行暗渠比例模型试验,研究暗渠在冬季输水过程中水流温度受外界环境温度、流速及进水口水温的影响.通过改变试验条件,研究了暗渠模型内水流温度降低与外界环境温度、水流流速及进水口水温的关系.经过数据拟合,得到暗渠水流温度与环境温度、水流流速及进水口水温的回归公式,...
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| 关 键 词： | 寒冷地区 暗渠 模型试验 环境温度 流速 水流温度 |
Model Study of Operation of Non-Pressure Water Delivery Culvert in Cold Regions |
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| LIU De-ren,LAI Yuan-ming,ZHANG Dong,ZHANG Shi-min.Model Study of Operation of Non-Pressure Water Delivery Culvert in Cold Regions[J].Journal of Glaciology and Geocryology,2011,33(6):1323-1329. |
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| Authors: | LIU De-ren LAI Yuan-ming ZHANG Dong ZHANG Shi-min |
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| Institution: | 1 (1.State Key Laboratory of Frozen soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou Gansu 730070,China;3.Gansu Water Conservancy and Hydroelectric Survey Design Institute,Lanzhou Gansu 730070,China) |
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| Abstract: | According to the practical engineering circumstances of no-pressure water delivery culvert in cold regions of North China,through a series of scale model tests in environmental cabinet,the influences of environment temperature,flow velocity and inlet water temperature on flow water temperature were studied.In this study,the flow water temperature deceases with environmental temperature,flow velocity and water temperature were examined by changing test conditions.Furthermore,this decease is expressed as a formula by data-fitting,which can be used to forecast the temperature of water flowing through culvert under varying conditions.This study would supply guidelines for construction and operation of similar irrigation engineering. |
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| Keywords: | cold regions culvert model test environmental temperature flow velocity flow water temperature |
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