Coarse Bifurcation Studies of Bubble Flow Microscopic Simulations

Details Coarse Bifurcation Studies of Bubble Flow Microscopic Simulations Coarse Bifurcation Studies of Bubble Flow Microscopic Simulations

2001-11-16

arxiv.org/abs/nlin/0111040v1

Nonlinear Sciences

Pattern Formation and Solitons

4 pages, 3 figures

Scientific paper

The parametric behavior of regular periodic arrays of rising bubbles is investigated with the aid of 2-dimensional BGK Lattice-Boltzmann (LB) simulators. The Recursive Projection Method is implemented and coupled to the LB simulators, accelerating their convergence towards what we term coarse steady states. Efficient stability/bifurcation analysis is performed by computing the leading eigenvalues/eigenvectors of the coarse time stepper. Our approach constitutes the basis for system-level analysis of processes modeled through microscopic simulations.

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