rheopecty
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In continuum mechanics, rheopecty or rheopexy is the rare property of some non-Newtonian fluids to show a time-dependent increase in viscosity (time-dependent viscosity); the longer the fluid undergoes shearing force, the higher its viscosity. Rheopectic fluids, such as some lubricants, thicken or solidify when shaken. The opposite and much more common type of behaviour, in which fluids become less viscous the longer they undergo shear, is called thixotropy.
Wikidata facts
- Instance of
- thermodynamic material property
Show 3 more facts
- studied by
- rheology
- opposite of
- thixotropy
- facet of
- non-Newtonian fluid
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Encyclopedic overview
3 sectionsContents
- Confusion between rheopectic and dilatant fluids
- See also
- References
In continuum mechanics, rheopecty or rheopexy is the rare property of some non-Newtonian fluids to show a time-dependent increase in viscosity (time-dependent viscosity); the longer the fluid undergoes shearing force, the higher its viscosity. Rheopectic fluids, such as some lubricants, thicken or solidify when shaken. The opposite and much more common type of behaviour, in which fluids become less viscous the longer they undergo shear, is called thixotropy.
Examples of rheopectic fluids include gypsum pastes, printer inks, and synovial fluid.
Excerpted from Wikipedia’s “rheopecty” article, available under the CC BY-SA 4.0 licence.