1990
DOI: 10.1122/1.550103
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The vane‐in‐cup as a novel rheometer geometry for shear thinning and thixotropic materials

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Cited by 173 publications
(102 citation statements)
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“…All other concentric cylinders advantages and disadvantages remain. For the end effects no easy physical solution exists, but experimental countermeasures can be considered [20].…”
Section: Concentric Cylinders Geometry 21mentioning
confidence: 99%
“…All other concentric cylinders advantages and disadvantages remain. For the end effects no easy physical solution exists, but experimental countermeasures can be considered [20].…”
Section: Concentric Cylinders Geometry 21mentioning
confidence: 99%
“…(6)-(8). The flow in a vane-incup configuration can be approximated as a Couette flow at low Reynolds numbers (Barnes and Carnali 1990). Therefore, the gap between the tip of the vane and the outer cylinder was used in the definition of the Reynolds number (Lathrop et al 1992).…”
Section: Determination Of the Power Number Equationmentioning
confidence: 99%
“…In a vane-in-cup configuration, direct determination of shear rate is difficult, particularly at a higher rotation speed for the vane-in-cup viscometer (Barnes and Carnali 1990;Barnes and Nguyen 2001). Although an ultrasonic Doppler velocimetry can be used to measure the velocity profile between the gaps of the rotors and stators (Derakhshandeh et al 2010b), the cost of the viscometer will be much increased.…”
Section: Introductionmentioning
confidence: 99%
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“…A analogia com Couette pode ser confirmada para o fluido newtoniano; para o fluido com tensão limite, ao contrário do apresentado em simulações numéricas na literatura onde a indicação da geometria vane ocorre para fluidos com índice de comportamento n ≤ 5 (29,30), devido à uma componente extensional as medidas por ressonância magnética evidenciaram uma distribuição do cisalhamento dissociada da simetria cilíndrica, este fato pode levar a uma possível migração de partículas em fluidos com tensão limite; por último notou-se para a suspensão, uma pequena região de deslizamento formada na interface entre a área com cisalhamento e entre as placas (movimento de corpo rígido), sendo essa região criada pelo fluido intersticial (com tensão limite).…”
Section: Tipos De Geometrias E Métodos De Misturaunclassified