پديدآورندگان :
Neshasteh Hamidreza hamidreza.neshasteh@u-paris.fr Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS-UMR 7162, 75013 Paris, France , Ravaro Marco marco.ravaro@u-paris.fr Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS-UMR 7162, 75013 Paris, France , Favero Ivan ivan.favero@u-paris.fr Matériaux et Phénomènes Quantiques, Université Paris Cité, CNRS-UMR 7162, 75013 Paris, France
كليدواژه :
rheometry , shear dynamic , nano , optomechanics , Newtonian liquid
چكيده فارسي :
Characterization of liquids through their shear rheological properties is a well-established approach in different fields of research and industrial applications. Micro-electromechanical systems (MEMS) are among the best solutions for rheology at frequencies up to 100 MHz. Nanomechanical resonators enable exploring the rheological properties of liquids at higher frequencies. Here, we report on an analytical investigation on the solid-liquid interaction for the in-plane vibration of an elastic disk surrounded by a Newtonian liquid. For water, we show that at high frequencies, acoustic radiation is the dominant mechanism in energy loss while at lower frequencies the shear friction dominates. We numerically examine these findings by using the finite element method (FEM) in liquid water at frequencies between 200 MHz˷2GHz.
