This article is cited in 7 papers

Bulk viscosity of a suspension of silicon oxide nanoparticles

M. I. Pryazhnikov^ab, A. V. Minakov<sup>ab

a</sup> Siberian Federal University, Krasnoyarsk
^b S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences

Abstract: Data on the bulk viscosity of an aqueous suspension of SiO$_2$ nanoparticles (Ludox TM-50) have been obtained for the first time using an acoustic spectrometer. A wide range of nanoparticle mass concentrations (from 1 to 50 wt%) has been investigated. Spectra of the ultrasound attenuation coefficient and coefficients of longitudinal and dynamic viscosities have been measured. Dependences of the dynamic and bulk viscosity coefficients of the suspensions on the nanoparticle concentration have been obtained.

Keywords: bulk viscosity, suspension of nanoparticle, silicon oxide, dynamic viscosity, nanofluid, acoustic spectroscopy, ultrasonic attenuation, sound speed.

Received: 10.02.2020
Revised: 25.03.2020
Accepted: 26.03.2020

DOI: 10.21883/PJTF.2020.12.49526.18237

 English version: Technical Physics Letters, 2020, 46:6, 606–609

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