Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5776608 | Applied Numerical Mathematics | 2017 | 14 Pages |
Abstract
Implicit-Explicit (IMEX) schemes are widely used for time integration methods for approximating solutions to a large class of problems. In this work, we develop accurate a posteriori error estimates of a quantity-of-interest for approximations obtained from multi-stage IMEX schemes. This is done by first defining a finite element method that is nodally equivalent to an IMEX scheme, then using typical methods for adjoint-based error estimation. The use of a nodally equivalent finite element method allows a decomposition of the error into multiple components, each describing the effect of a different portion of the method on the total error in a quantity-of-interest.
Related Topics
Physical Sciences and Engineering
Mathematics
Computational Mathematics
Authors
Jehanzeb H. Chaudhry, J.B. Collins, John N. Shadid,