Heat Flow Analysis for Unsaturated Soils - Unsaturated Soil Mechanics in Engineering Practice - page 513

Constant surface temperature = 3 ° C

Outside pipe
temperature = − 2 ° C

Initial soil
temperature = 3 ° C

Figure 10.28 Geometry and boundary conditions for chilled pipe placed in unfrozen soil along
with generated finite element mesh.

1.6

3 ° C

1.4

1.2

-2 ° C

-1 ° C

1

0.5 ° C

-0.5 ° C

0.8

1.0 ° C

1.5 ° C

0.6

2 ° C

2.5 ° C

0.4

0.2

0
−

0.2 0 0.2 0.4 0.6 0.8

Distance (m)

1 1.2 1.4 1.6

Temperature contours, ◦ C, for heat transfer around pipe after 7 days. Figure 10.29