Publication detail
Temperature dependence of magnetorheological fluid yield stress and Bingham viscosity
ROUPEC, J. MAZŮREK, I. STRECKER, Z. KUBÍK, M. MACHÁČEK, O.
Czech title
Teplotní závislost meze toku a Binghamské viskozity magnetoreologické kapaliny
English title
Temperature dependence of magnetorheological fluid yield stress and Bingham viscosity
Type
conference paper
Language
en
Original abstract
This contribution describes results of measurement of magnetorheological fluid MRF-140CG by LORD Corporation. Results of this measurement are used as an inputs to the CFX model. MR fluid has been measured in special slit-flow rheometer at temperature range from 25 to 60 °C and at magnetic field of 0, 146, 280 a 368 kA/m. The flow curves were compiled with the respect of Bingham model of MR fluid Non-Newtonian behavior. Bingham model has two parameters – yield stress and Bingham (plastic) viscosity. Thanks to high precise measurement of pressure drop, the temperature dependence of yield stress is visible. All measured rheological properties were used as an input to the model describing MR fluid behavior in dependence on temperature and magnetic field.
Czech abstract
Tento příspěvek popisuje výsledky měření magnetoreologické kapaliny MRF – 140CG LORD Corporation. Výsledky tohoto měření se používají jako vstupy do modelu CFX. MR tekutina byla změřena ve speciálním slit-flow reometru v rozsahu teplot od 25 do 60 °C a v magnetickém poli 0, 146, 280 a 368 kA/m. Tokové křivky byly vytvořeny pomocí Binghamského modelu nenewtonského chování MR kapaliny. Binghamský model má dva parametry-mez toku a Binghamskou (plastickou) viskozitu. Díky velmi přesnému měření tlakového spádu byla rozlišena závislost meze toku na teplotě. Všechny měřené reologické vlastnosti byly použity jako vstup do modelu popisující chování MR kapaliny v závislosti na teplotě a magnetickém poli.
English abstract
This contribution describes results of measurement of magnetorheological fluid MRF-140CG by LORD Corporation. Results of this measurement are used as an inputs to the CFX model. MR fluid has been measured in special slit-flow rheometer at temperature range from 25 to 60 °C and at magnetic field of 0, 146, 280 a 368 kA/m. The flow curves were compiled with the respect of Bingham model of MR fluid Non-Newtonian behavior. Bingham model has two parameters – yield stress and Bingham (plastic) viscosity. Thanks to high precise measurement of pressure drop, the temperature dependence of yield stress is visible. All measured rheological properties were used as an input to the model describing MR fluid behavior in dependence on temperature and magnetic field.
Keywords in Czech
MR kapalina, magnetoreologický, mez kluzu, Binghamská viskozita, slit-flow reometr
Keywords in English
MR fluid, magnetorheological, yield stress, Bingham viscosity, slit-flow rheometer
Released
09.05.2016
Publisher
Academy of Science of the Czech Republic, v.v.i.
Location
Praha
ISBN
978-80-87012-59-8
ISSN
1805-8248
Book
Engineering Mechanics 2016
Pages from–to
498–501
Pages count
642
BIBTEX
@inproceedings{BUT125109,
author="Jakub {Roupec} and Ivan {Mazůrek} and Zbyněk {Strecker} and Michal {Kubík} and Ondřej {Macháček},
title="Temperature dependence of magnetorheological fluid yield stress and Bingham viscosity",
booktitle="Engineering Mechanics 2016",
year="2016",
month="May",
pages="498--501",
publisher="Academy of Science of the Czech Republic, v.v.i.",
address="Praha",
isbn="978-80-87012-59-8",
issn="1805-8248"
}