Sequential Methods for Coupled Geomechanics and Multiphase Flow

4.4. NUMERICAL EXAMPLES 113
P d =P/P i
u x /L x
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
P d at the top layer by Drained
∆ t d =2.06×10 −3 10 iter
∆ t d =2.06×10 −4 1 iter
True solution
0.8
0 0.5 1 1.5
x/Lx
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
x 10−3
1
u x /L x at the top layer by Drained
∆ t d =2.06×10 −4 1 iter
∆ t d =2.06×10 −3 10 iter
True solution
0
0 0.5 1 1.5
x/Lx
Figure 4.14: Comparison between more iterations and refined time step size in the drained
split for Case 4.2: pressure (top) and displacement (bottom).