A formulation of the intermolecular force in the nonideal gas lattice Boltzmann equation (LBE) method is examined. Discretization errors in the computation of the intermolecular force cause parasitic currents. The parasitic currents can be eliminated to round-off if the potential form of the intermolecular force is used with compact isotropic discretization. Numerical tests confirm the elimination of the parasitic currents. In order to demonstrate the applicability of the present model, inertial coalescence of droplets at high density ratio is studied.
- Fluids Engineering Division
A Lattice Boltzmann Equation Method Without Parasitic Currents and Its Application in Droplet Coalescence
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Lee, T, & Fischer, PF. "A Lattice Boltzmann Equation Method Without Parasitic Currents and Its Application in Droplet Coalescence." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 1: Symposia, Parts A and B. Miami, Florida, USA. July 17–20, 2006. pp. 675-681. ASME. https://doi.org/10.1115/FEDSM2006-98447
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