Grasping the behavior of magnetorheological fluids in gradient pinch mode via microscopic imaging
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU151142" target="_blank" >RIV/00216305:26210/24:PU151142 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28110/24:63579538 RIV/70883521:28610/24:63579538
Result on the web
<a href="https://pubs.aip.org/aip/pof/article/36/4/042004/3280712/Grasping-the-behavior-of-magnetorheological-fluids" target="_blank" >https://pubs.aip.org/aip/pof/article/36/4/042004/3280712/Grasping-the-behavior-of-magnetorheological-fluids</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0203804" target="_blank" >10.1063/5.0203804</a>
Alternative languages
Result language
angličtina
Original language name
Grasping the behavior of magnetorheological fluids in gradient pinch mode via microscopic imaging
Original language description
Magnetorheological (MR) fluids are suspensions of micrometer-sized ferromagnetic particles in a carrier fluid, which react to magnetic fields. The fluids can be operated in several fundamental modes. Contrary to the other modes, the rheology and microstructure formation of the MR fluid in the gradient pinch mode have been studied to a far lesser extent. The magnetic field distribution in the flow channel is intentionally made non-uniform. It is hypothesized that the Venturi-like contraction is achieved via fluid property changes, leading to a unique behavior and the presence of a pseudo-orifice. The main goal is to investigate the presence of the Venturi-like contraction effect in the fluid by means of optical imaging and hydraulic measurements. To accomplish the goal, a unique test rig has been developed including a fluorescence microscope and MR valve prototype. The Venturi-like contraction hypothesis was confirmed. The results indicate that the effective flow channel size decreases by 92% at the maximum magnetic flux applied. This has a direct impact on the flow characteristics of the MR valve. The variation of the pressure–flow rate curve slope with magnetic field was demonstrated. The results provide valuable information for understanding the rheology and microstructure formation mechanism in MR fluids in the pinch mode.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical 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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICS OF FLUIDS
ISSN
1070-6631
e-ISSN
1089-7666
Volume of the periodical
36
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
„042004-1“-„042004-10“
UT code for WoS article
001196145700012
EID of the result in the Scopus database
2-s2.0-85189666443