Forrester-et-al-c5nr07396k.pdf (3.8 MB)
Experimental verification of nanofluid shear-wave reconversion in ultrasonic fields
journal contribution
posted on 2016-01-15, 14:20 authored by Derek Michael Forrester, Jinrui Huang, Valerie PinfieldValerie Pinfield, Francine LuppeHere we present the verification of shear-mediated contributions to multiple scattering of ultrasound in suspensions. Acoustic spectroscopy was carried out with suspensions of silica of differing particle sizes and concentrations in water to find the attenuation at a broad range of frequencies. As the particle sizes approach the nanoscale, commonly used multiple scattering models fail to match experimental results. We develop a new model, taking into account shear mediated contributions, and find excellent agreement with the attenuation spectra obtained using two types of spectrometer. The results determine that shear-wave phenomena must be considered in ultrasound characterisation of nanofluids at even relatively low concentrations of scatterers that are smaller than one micrometre in diameter.
Funding
The authors acknowledge funding from the EPSRC, grant number EP/L018780/1
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Published in
NanoscaleVolume
8Issue
10Pages
5497 - 5506Citation
FORRESTER, D.M. ...et al., 2016. Experimental verification of nanofluid shear-wave reconversion in ultrasonic fields. Nanoscale, 8 (10), pp. 5497-5506.Publisher
© Royal Society of ChemistryVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/Acceptance date
2015-12-30Publication date
2015-12-31Notes
This is an Open Access Article. It is published by Royal Society of Chemistry under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/. The dataset which supports this article can be found at http://dx.doi.org/10.17028/rd.lboro.2056149ISSN
2040-3364eISSN
2040-3372Publisher version
Language
- en