Abstract
AbstractThe equation‐free framework for multiscale computing is built around the central idea of a coarse time‐stepper, which is an approximate time integrator for the macroscopic variables when only a microscopic simulator is available. In a previous paper, we studied the accuracy and stability of the coarse time‐stepper when the microscopic simulator is a lattice Boltzmann model for one‐dimensional diffusion. In this paper, we rely on these results to show how the coarse time‐stepper can be accelerated using the recently proposed teleprojective method or the multistep state extrapolation method. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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