On the Accuracy and Efficiency of Transient Spectral Element Models for Seismic Wave Problems

Figure 6

Accuracy with respect to CPU time consumptions (in seconds) with the RK and the AB time discretizations. The mesh step size is fixed to be , and the time step refinement gives a series of numerical results with various lengths of the time step for each element order.

(a) Solid domain

(b) Fluid domain