Directional region control of the thermal fractal diffusion of a space body*
Qiao Weia),b), Sun Jieb)†, Liu Shu-Tanga)
       
Thermal fractal diffusion in different interference space regions: (a) 0 ≤ θ ≤ π /2,0 ≤ φ ≤ π /2, (b) π /2 ≤ θ ≤ π , π ≤ φ ≤ 3 π /2, (c) π /2 ≤ θ ≤ π ,3 π /2 ≤ φ ≤ 2 π , (d) 0 ≤ θ ≤ π /2, 0 ≤ φ ≤ π .