Nanoscale Venturi-Bernoulli Pumping of Liquids.

Rehak, Pavel; Gao, Haiqi; Lu, Ruifeng; Král, Petr · ACS Nano · 2021

basic_science · Level V

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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.