MD boundary conditions for pressure gradient flows : nano-mixing and nano-droplet deformation in extensional flows

Borg, Matthew Karl and Nicholls, William and Reese, Jason; (2010) MD boundary conditions for pressure gradient flows : nano-mixing and nano-droplet deformation in extensional flows. In: Nanotech 2010. Taylor & Francis, USA. ISBN 9781439834183

[thumbnail of Reese_JM_Pure_MD_boundary_conditions_for_pressure_gradient_flows_Nano_mixing_and_nano_droplet_deformation_in_extensional_flows_2011.pdf] PDF. Filename: Reese_JM_Pure_MD_boundary_conditions_for_pressure_gradient_flows_Nano_mixing_and_nano_droplet_deformation_in_extensional_flows_2011.pdf
Preprint

Download (1MB)

Abstract

We present new algorithms for simulating pressure gradient flows in molecular dynamics (MD) simulations. Nano-channel inlet and outlet non-periodic boundary conditions are implemented using hydrodynamic state reservoirs and flux boundary models at arbitrary boundaries of the domain geometry. We demonstrate the new method in a complex nano-mixer configuration and for droplet deformation in extensional flow channels. The technique which we propose is applicable to any complex nano-channel configuration, and may serve as a useful tool in engineering design of nano-scale applications.

ORCID iDs

Borg, Matthew Karl, Nicholls, William and Reese, Jason ORCID logoORCID: https://orcid.org/0000-0001-5188-1627;