Simulation Study on Heat Transfer of Underground Pipe Group based on Lattice Boltzmann Method
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.
heat exchangers for underground tube groupsquartet structure generation setlattice boltz-mann methodseepage and heat transfer
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