An Iterative High-Accuracy ADI Method for the 3D Parabolic Equation

Figure 7

Fields in a rectangular tunnel (Z = 50 m): (a) the analytical result, (b) the MF-ADI method, (c) the proposed IHA-ADI method (1 iteration), and (d) the proposed IHA-ADI method (2 iterations).

(a)

(b)

(c)

(d)