Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session E07: Microscale Flows: Interfaces
5:10 PM–6:28 PM,
Sunday, November 18, 2018
Georgia World Congress Center
Room: B212
Chair: Thomas Cubaud, Stony Brook University
Abstract ID: BAPS.2018.DFD.E07.4
Abstract: E07.00004 : Continuum explanation of the cause of slip at an interface*
5:49 PM–6:02 PM
Presenter:
Joseph Thalakkottor
(University of Florida)
Authors:
Joseph Thalakkottor
(University of Florida)
Kamran Mohseni
(University of Florida)
Slip can be interpreted as the inability of an interface to transfer information across it. In the case of velocity and thermal slip this corresponds to the lack of transfer of momentum and energy across the interface, respectively. Here, we attempt to provide a continuum explanation of the cause of this lack of tangential transfer of information. Using the results from molecular dynamics simulations we demonstrate that slip is analogous to a shock in fluid dynamics. Mathematically, slip can be considered as a change in the characteristic nature of the governing equation as one approaches a slipped wall. In the case of a shock there is a jump in the component of velocity normal to its plane, while in the case of slip this jump is in the component of velocity tangential to the interface.
*Office of Naval Research
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.E07.4
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