Finite-Difference Diffusion Equation Consistent with Density Profiles near Surfaces

Monday, October 17, 2011
Exhibit Hall B (Minneapolis Convention Center)
G.L. Aranovich and M.D. Donohue, Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD

The inconsistency between density profiles of fluids near surfaces and predictions of classical diffusion model is analyzed. A new diffusion equation and its solutions are proposed to reconcile adsorption behavior with predictions of the diffusion equation at the equilibrium limit. This solution allows boundary conditions consistent with density profiles in fluids near surfaces.

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See more of this Session: Poster Session: Interfacial Phenomena
See more of this Group/Topical: Engineering Sciences and Fundamentals