Tuning density profiles and mobility of inhomogeneous fluids
arXiv:0801.0759 · doi:10.1103/PhysRevLett.100.106001
Abstract
Density profiles are the most common measure of inhomogeneous structure in confined fluids, but their connection to transport coefficients is poorly understood. We explore via simulation how tuning particle-wall interactions to flatten or enhance the particle layering of a model confined fluid impacts its self-diffusivity, viscosity, and entropy. Interestingly, interactions that eliminate particle layering significantly reduce confined fluid mobility, whereas those that enhance layering can have the opposite effect. Excess entropy helps to understand and predict these trends.
5 pages, 3 figures
References in corpus (4)
- Excess entropy, Diffusivity and Structural Order in liquids with water-like anomalies
- Calculation of surface tension via area sampling
- Does confining the hard-sphere fluid between hard walls change its average properties?
- How short-range attractions impact the structural order, self-diffusivity, and viscosity of a fluid
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