Flexible blade for in-line measurement of low-range viscosity

Weihs, Daphne; Hadad, Tal; Gurka, Roi; Liberzon, Alex

doi:10.1016/j.ces.2013.01.018

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…Viscosity of a fluid can be measured by many approaches and methods [7,8]. Rotational, vibrational and tube viscometers are among the common types of traditional measuring techniques which based on the controlled deformation of the sample.…”

Section: Introductionmentioning

confidence: 99%

A Torque-Sensorless Viscometer for Food Processing Applications

Jiang

Hashimoto

Yamakoshi

et al. 2019

AMM

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Our study aims to develop a small handy low-cost viscometer for nursing care food management. There are many methods to measure the viscosity of a fluid. In this research, the rotational viscometer employing the observer-based method instead of the actual torque transducer has been developed. The digitally controlled motor has been used to estimate the viscosity in real time with high accuracy. In order to verify the effectiveness of the developed viscosity estimation method, a prototype viscometer has been constructed and tested the viscosity estimation accuracy with standard liquids. As a result, the viscosity accuracy is equivalent to that of the conventional torque transducer-equipped viscometer.

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Section: Introductionmentioning

confidence: 99%

A Torque-Sensorless Viscometer for Food Processing Applications

Jiang

Hashimoto

Yamakoshi

et al. 2019

AMM

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Turbulent flow field in a stirred vessel agitated by an Impeller with flexible blades

Liang

Shi

et al. 2018

AIChE Journal

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In order to reveal the effect of the blades normal vibration on flow turbulence in the stirred vessel, we designed three kinds of blades: the flexible, flat‐rigid and curved‐rigid blades. The flow fields produced by the impellers with these three kinds of blades were measured by two‐dimensional particle image velocimetry. The results showed that the calculated turbulent kinetic energy (TKE) based on the pseudo‐isotropic assumption is slightly higher than that by the three fluctuating velocities for the flexible and curved‐rigid impellers, and the difference between above two calculations is smaller for the former impeller. For the flexible blades, the trailing vortices slightly move outwards in radial direction than those for the curved‐rigid blades, enhancing TKE transport from the blade to the bulk region of the vessel. For the flexible impeller, the phase‐averaged TKE differs slightly from that for the flat‐rigid impeller, but is higher than that for the curved‐rigid impeller. © 2018 American Institute of Chemical Engineers AIChE J, 64: 4148–4161, 2018

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