Uniformly Converging Schemes for Discontinuous Seismic Wave Problems
نویسندگان
چکیده
In numerical modeling of elastic wave propagation, standard numerical simulation schemes suuer from numerical errors, in the form of Gibbs oscillations, caused by discon-tinuities in material properties. A new modiication scheme to the standard diierentiation operator aimed at reducing these errors is proposed. It is based on computing derivative correction factors from analytical and numerical derivatives of a special test function. This modiication scheme can be applied to virtually any diierentiation scheme and on complicated models. A pseudospectral algorithm using this technique is presented.
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