Efficient simulation of unsaturated flow in heterogeneous soils using an exponential integrator

Carr, Elliot (2009) Efficient simulation of unsaturated flow in heterogeneous soils using an exponential integrator. In QANZIAM Meeting 2009, 24-25 October 2009, Boonah, Qld. (Unpublished)


  • Provided a practical variable-stepsize implementation of the exponential Euler method (EEM).

  • Introduced a new second-order variant of the scheme that enables the local error to be estimated at the cost of a single additional function evaluation.

  • New EEM implementation outperformed sophisticated implementations of the backward differentiation formulae (BDF) of order 2 and was competitive with BDF of order 5 for moderate to high tolerances.

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ID Code: 92762
Item Type: Conference Item (Presentation)
Refereed: No
Divisions: Current > Schools > School of Mathematical Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2009 The Author
Deposited On: 09 Feb 2016 23:36
Last Modified: 13 Feb 2016 18:22

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