四川大学学报：工程科学版2012，Vol.44Issue(3)：36-41,6.
坝基双集中渗漏通道传热模型及流速反演研究
Study on Double-concentrated-leakage Passage Heat Conduction Model and Retrieval of Velocity in Dam Basement
摘要
Abstract
Regarding concentrated leakage passage in dam basement as a continuous line-heat source, a heat conduction model was pro- posed by using line-heat source function. Moreover,to overcome the limitations of previous research, the length of the line-heat source was considered as limited, and the heat release rate of line source as changing along the leakage path. Then based on dummy heat source method and superposition method, a heat conduction model of double concentrated leakage passage with limited length was proposed and its analytical solution was derived. Eventually, an inverse calculation method was set up to obtain leakage velocity. Mean while, a laboratory experiment under different operating conditions was designed to model temperature field. The resuh of comparison of theoretical and measurement values showed that the heat conduction model proposed in this paper and its velocity inversion are precise and feasible.关键词
渗漏通道/虚拟热源法/传热模型/实验模拟/流速反演Key words
concentrated-leakage passage/dummy heat source method/heat conduction model/experimental simulation/velocity inversion分类
建筑与水利引用本文复制引用
董海洲,罗日洪,张令,高彬,张小燕..坝基双集中渗漏通道传热模型及流速反演研究[J].四川大学学报：工程科学版,2012,44(3):36-41,6.基金项目
国家自然科学基金资助项目 （）
江苏省自然科学基金资助项目 （）
中央高校基本科研业务费专项资金资助 （）
