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Application of a truncation error estimate to time step selection in a reservoir simulator
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, ECMOR VII - 7th European Conference on the Mathematics of Oil Recovery, Sep 2000, cp-57-00038
- ISBN: 978-90-73781-13-9
Abstract
Time step selection in a reservoir simulator is a balance between minimizing work load and maximizing accuracy. The paper presents derivation of an estimate for the time truncation error for a discretized nonlinear system of differential equations and use of this estimate as basis for time step selection. The relationship between the truncation error and the solution error is discussed.