Abstract
We introduced our recent works on development of rheometry utilizing ultrasonic velocity profiling (UVP) that can capture spatio-temporal velocity information even in opaque fluids. Rheological properties describing relations in stress, strain and strain rate are reflected into flow field, and analyzing flow information obtained in simple unsteady flow configurations may provide the rheological properties. We adopted cylindrical vessel with regular oscillation on the cylinder wall as the configuration, and evaluated effective Newtonian viscosity of viscous oil with dispersed small bubbles and time-dependent behavior of montmorillonite suspension that is one of thixotropic fluids to demonstrate applicability of the rheometry. We also explained novel idea of ‘flow surface’ that aims to describe rheological properties without using rheology models.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
