Beat Birkhofer, Alban Debacker, Simone Russo, Stefano Ricci, Didier Lootens
In-line rheometry based on ultrasonic velocity profiles: comparison of data processing methods
Appl. Rheol. 22:4 (2012) 44701 (9 pages)

Abstract: Ultrasonic Velocity Profiling with Pressure Drop (UVP+PD) is a technique, which allows the measurement of the shear rate dependent viscosity non-invasively in a laminar pipe flow. To assess the performance of different data processing approaches for the extraction of the rheometric values, model fluids are characterized under well defined flow conditions created with a piston setup. Considering the shear rate range available in the pipe flow, a good quantitative agreement is found between the in-line measurements and the off-line measurements made with a rotational rheometer © 2012 Applied Rheology.

DOI 10.3933/ApplRheol-22-44701

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