In-situ visualisation of the micro-structure of a Carbopol gel during a confined microscopic flow

0545103 - ÚMCH 2022 RIV NL eng J - Článek v odborném periodiku
Younes, E. - Himl, M. - Starý, Zdeněk - Burghelea, T.
In-situ visualisation of the micro-structure of a Carbopol gel during a confined microscopic flow.
Journal of Non-Newtonian Fluid Mechanics. Roč. 296, October (2021), č. článku 104630. ISSN 0377-0257. E-ISSN 1873-2631
Institucionální podpora: RVO:61389013
Klíčová slova: yield stress materials * micro-structure * carbopol
Obor OECD: Polymer science
Impakt faktor: 3.112, rok: 2021
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S0377025721001257?via%3Dihub

An in-situ visualisation of the microstructure of a Carbopol gel flowing in a micro-channel is presented. By means of a novel chemical protocol able to stain the solid material units of the gel with a fluorescent molecule we are able to accurately identify the solid/fluid material units advected by the confined microscopic flow. Based on this novel visualisation technique a full statistical description of the distributions of solid–fluid material units in the flow in terms of space and time averages, probability density functions and space–time correlations is reported for the first time.
Trvalý link: http://hdl.handle.net/11104/0321947