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Non–Newtonian fluid (Introduction) |
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(Fig 2b) |
- Newtonian:
 : air, water, glycerin
- Bingham Plastic:
 : toothpaste
(Fluid does not move or deform till there is a critical stress)
- Dilatant:
 : starch or sand suspension
or shear thickening fluid
(Fluid starts ‘thickening' with increase in its apparent viscosity)
- Pseudo plastic:
 : paint or shear thinning fluid
(Fluid starts ‘thinning' with decrease in its apparent viscosity)
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Note: |
- For some non-Newtonians fluids, viscosity or apparent viscosity may be time-dependent. Such fluids are also called ‘Memory' fluids.
- Rheology is a science of studying flow and behavior of polymeric fluids.
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