Temperature Field and Optimal Design of Duct-Ventilated Tower Foundation in Permafrost Regions

Figure 5

Temperature distributions of the duct-ventilated tower foundation on January 15 with different diameters. (a) No ventilation duct. (b) D = 8 cm. (c) D = 12 cm. (d) D = 16 cm. (e) D = 20 cm.

(a)

(b)

(c)

(d)

(e)