Directional region control of the thermal fractal diffusion of a space body*
Qiao Weia),b), Sun Jieb)†, Liu Shu-Tanga)
       
Thermal fractal diffusion with variation of the spherical domain and sectional region: (a) r ≤ 8; θ = 0, (b) r ≤ 8; θ = π ; θ = π /2, φ = j π /2, j = 2,3, (c) r ≤ 9; θ = π /2, φ = 3 π /2, (d) r ≤ 10; θ = π /2, φ = j π /2, j = 2,3, (e) r ≤ 11; θ = π /2, φ = j π /2, j = 0,1,2,3, (f) r ≤ 14; θ = i π /2, i = 0,2; θ = π /2, φ = j π /2, j = 0,1,2,3.