Research Article

Staggered-Grid Finite Difference Method with Variable-Order Accuracy for Porous Media

Figure 5

Snapshots of the components of fluid (a)-(b) and solid (c)-(d) particle velocity at  ms for the horizontally layered porous model by the SFD method with fixed-order accuracy ( ) and the SFD method with variable-order accuracy ( ). No absorbing boundary conditions are used in the modeling.
157071.fig.005a
(a) The conventional method
157071.fig.005b
(b) The new method
157071.fig.005c
(c) The conventional method
157071.fig.005d
(d) The new method