Prediction of Temperature in a Reservoir Under Influence of Incoming Branches Based on 3D Temperature Model

LI Lin; ZHOU Xiao-de; SONG Ce

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Prediction of Temperature in a Reservoir Under Influence of Incoming Branches Based on 3D Temperature Model

- Prediction of Temperature in a Reservoir Under Influence of Incoming Branches Based on 3D Temperature Model
- Bulletin of Soiland Water Conservation Vol. 31, Issue 2, Pages: 159-161(2012)
- 作者机构：
  
  1. 中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011
  2. 中国科学院研究生院,北京,100049
  3. 荒漠与绿洲生态国家重点实验室,新疆,乌鲁木齐,830011
  4. 新疆水利水电规划设计管理局,新疆,乌鲁木齐,830000
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- Published：2012
- 稿件说明：
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LI Lin, ZHOU Xiao-de, SONG Ce. Prediction of Temperature in a Reservoir Under Influence of Incoming Branches Based on 3D Temperature Model[J]. Bulletin of Soiland Water Conservation, 2012, 31(2): 159-161.
DOI：

LI Lin, ZHOU Xiao-de, SONG Ce. Prediction of Temperature in a Reservoir Under Influence of Incoming Branches Based on 3D Temperature Model[J]. Bulletin of Soiland Water Conservation, 2012, 31(2): 159-161. DOI：

摘要

以存在支流的新疆自治区某水库为例，分析其支流与主库之间的相互关系，采用三维水温模型，对有无支流影响下的水库进行了模拟计算，对比分析了水库库区的水温分布、坝前垂向水温和水库的下泄水温。结果表明，支流对水库的水温分布存在一定的影响，在有支流影响时，水库坝前底部水温较低，下泄水温也较低，并在冬季出现较大温差。通过改变主支库交汇处距坝址的距离，分析表明支流离坝址越近，对水库的水温分布影响越大。

Abstract

A reservoir with branches was selected in Xinjiang Uygur Autonomous Region as the study subject． Based on the analysis of the interaction between branches and the reservoir，this study simulated the temperature dynamics in the reservoir under the scenarios with and without the influence of branches using 3D temperature model． The temperature distributions on reservoir water surface，in discharged water，and in the vertical profiles in upstream front of the dam were compared． The results show that the branches had certain influences on the temperature distribution of the reservoir; under the influence，the water in the bottom of the vertical profile in front of the dam had low temperature，as well as the discharged water from the dam outlet． The large temperature differences were found in the winter． Through shifting the location where the branches merge into the reservoir，the simulation indicated that the influences of the branches on reservoir temperature distribution increased as the merging point moving towards the dam．

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