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Table 2 Boundary conditions

From: Heat transfer analysis of underground U-type heat exchanger of ground source heat pump system

  Boundary type Velocity (m/s) Temperature (K)
Fluid part
Inlet VELCITY_INLET 0.65 308
Outlet OUTFLOW   
Solid part
Distant surface Gradually reduce from upper to bottom   
Borehole wall Coupled wall   
Pipe wall Coupled wall   289
Bottom surface Constant temperature   
Top Heat insulation