Nanoscale Venturi-Bernoulli Pumping of Liquids

ACS Nano. 2021 Jun 22;15(6):10342-10346. doi: 10.1021/acsnano.1c02557. Epub 2021 May 24.

Abstract

We use molecular dynamics simulations to show that the Venturi-Bernoulli effect can pump liquids at the nanoscale. In particular, we found that water flowing in an open reservoir close to a static substrate experiences a friction which converts its kinetic energy into breaking of hydrogen bonds. This water flowing under friction acquires a lower density, which can be used in pumping fluids positioned under a nanoporous substrate.

Keywords: Venturi−Bernoulli effect; liquid pumping; molecular dynamics simulations; motility; nanofluidics.