文章基本信息

标题：Study on the influence of fracture flow on the temperature field of rock mass with high temperature
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作者：Xinghui Wu ; Qifeng Guo ; Meifeng Cai 等
期刊名称：Case Studies in Thermal Engineering
印刷版ISSN：2214-157X
电子版ISSN：2214-157X
出版年度：2020
卷号：22
页码：1-11
DOI：10.1016/j.csite.2020.100755
出版社：Elsevier B.V.
摘要：For the development of deep resources, the temperature field of deep rock mass is an unavoidable problem. In order to understand the law of redistribution of temperature field in deep rock mass disturbed by fissure water, this paper simulates the heat transfer process of smooth and rough fractured rock mass with groundwater flow, and analyzes the influence of fracture opening, seepage velocity and roughness on the redistribution of temperature field. The results show that: the larger the fracture opening is, the smaller the growth rate of rock wall temperature is, and the larger the range of slow increase is of water temperature; seepage velocity has a gradual effect on the increase of rock wall temperature, the greater the seepage speed is, the smaller the water temperature is at the same position; when the roughness is between 0% and 20%, the rock wall temperature has a sudden drop, and the maximum rock wall temperature decreases by 20.56%. Compared with the flow velocity, changing the fracture roughness can improve the cooling efficiency of rock wall. With the increase of roughness, the water temperature in the same position is lower.
关键词：Fracture flow ; Rock mass with high temperature ; Temperature field ; Fracture roughness