Atomistic simulations of water flow in graphene channels driven by imposed thermal gradients

Harvey A. Zambrano, Elton E. Oyarzua, J. H. Walther

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

35 Downloads (Pure)

Abstract

Nanofluidics has become interesting as the basis for further device miniaturization. Different from macro and microfluidics, nanoconfined flows are significantly influenced by fluid-wall interaction. In this context, recent studies have reported the potential exploitation of imposed thermal gradients as mechanism to transport water in nanoconduits. Moreover, graphene-based materials have attracted increasing attention in nanofluidic applications due to their unique thermal, structural and hydrodynamic properties. Here, we conduct atomistic simulations to investigate water transport in graphene nanoslit channels driven by thermal gradients. The study is focused in understanding therelation between phonon currents induced in the walls by imposed thermal gradients and the corresponding measured flow rates. Furthermore, a comprehensive analysis of the influence of wettability, multi-layer graphene in the walls and geometrical asymmetries is performed. Our results provide valuable information for the design of thermal graphene-based nanopumps and contribute to the understanding of suitable driving mechanisms for liquids in nanoconduits.
Original languageEnglish
Publication date2018
Number of pages1
Publication statusPublished - 2018
Event71st Annual Meeting of the APS Division of Fluid Dynamics - Georgia World Congress Center , Atlanta, United States
Duration: 18 Nov 201820 Nov 2018

Conference

Conference71st Annual Meeting of the APS Division of Fluid Dynamics
LocationGeorgia World Congress Center
CountryUnited States
CityAtlanta
Period18/11/201820/11/2018

Fingerprint Dive into the research topics of 'Atomistic simulations of water flow in graphene channels driven by imposed thermal gradients'. Together they form a unique fingerprint.

Cite this