PINCH MODE MAGNETORHEOLOGICAL FLOW BENCH: FLUID FLOW ANALYSIS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU149075" target="_blank" >RIV/00216305:26210/23:PU149075 - isvavai.cz</a>
Result on the web
<a href="https://www.eccomasproceedia.org/conferences/thematic-conferences/smart-2023/9909" target="_blank" >https://www.eccomasproceedia.org/conferences/thematic-conferences/smart-2023/9909</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
PINCH MODE MAGNETORHEOLOGICAL FLOW BENCH: FLUID FLOW ANALYSIS
Original language description
Magnetorheological (MR) fluids are known smart materials. In the presence of magnetic field the material develops a yield stress. The technology has been used in the automotive industry, for example, or high quality optical finishing applications. In the (existing) conventional flow-mode valves the MR fluid is energized by magnetic flux perpendicular to the fluid flow path. The effect is an increase in the material’s effective resistance-to-flow. The so-called gradient pinch mode (GPM) follows a different principle – the flux in the flow channel is directed to activate the fluid in the areas adjacent to the channel walls. Then, high yield stresses are induced in the material in the adjacent zones and low yield stresses are achieved in the middle of the channel, the yield stress distribution is non-uniform. As a result, a Venturi-like contraction is formed solely by material means, i.e. without changing the flow path geometry. This may lead to a new category of controlled semi-active valves. However, a
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/GF21-45236L" target="_blank" >GF21-45236L: Rheology of magnetorheological fluids subjected to non-uniform magnetic fields - pinch mode</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů