基于格子Boltzmann方法的地埋管管群换热的模拟研究
Simulation Study on Heat Transfer of Underground Pipe Group based on Lattice Boltzmann Method
苏顺玉 1周立1
作者信息
- 1. 武汉科技大学 城市建设学院,湖北 武汉 430070
- 折叠
摘要
土壤结构和地下水通常会影响地埋管换热器的传热,本文将利用随机四参数生成法建立双分布函数格子Boltzmann模型,对有渗流条件下地埋管管群换热器与饱和土壤多孔介质的换热情况进行了模拟,分析了影响埋管外土壤平均温度的主要因素.研究表明,土壤热传导特性主要受土壤孔隙度、地下水渗流速度和土壤骨架导热系数ks的影响.本文的研究结论对考虑土壤渗流的地下换热器的设计具有一定的指导意义.
Abstract
Soil structure and groundwater usually affect the heat transfer of buried pipe heat exchanger.In this paper,we will use Quartet Structure Generation Set(QSGS)method to establish a double-distribu-tion-function lattice Boltzmann model,and simulate the heat exchange between the buried pipe cluster heat exchanger and the saturated soil porous medium under the condition of having seepage flow,and an-alyses the main factors affecting the average temperature of the soil outside of the buried pipe.It is shown that soil heat transfer characteristics are mainly affected by soil porosity,groundwater seepage rate and soil skeleton thermal conductivity ks.The conclusions of this paper are of some guiding significance for the design of underground heat exchangers considering soil seepage.
关键词
地埋管管群换热器/四参数随机生成法/格子Boltzmann法/渗流与换热Key words
heat exchangers for underground tube groups/quartet structure generation set/lattice boltz-mann method/seepage and heat transfer引用本文复制引用
出版年
2024
NETL
NSTL
万方数据