# Difference between revisions of "Herschel-Bulkley fluid"

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Chakraborty (Talk | contribs) (New page: The Herschel-Bulkley fluid is a generalized model of a non-Newtonian fluid. Generally, the stress of the fluid is related to the strain in a nonlinear way. In the Herschel-Bulkley model,...) |
Chakraborty (Talk | contribs) (→References) |
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== References == | == References == | ||

− | [http://en.wikipedia.org/wiki/Herschel%E2%80%93Bulkley_fluid] | + | [http://en.wikipedia.org/wiki/Herschel%E2%80%93Bulkley_fluid Wikipedia entry] |

## Latest revision as of 20:17, 6 December 2009

The Herschel-Bulkley fluid is a generalized model of a non-Newtonian fluid. Generally, the stress of the fluid is related to the strain in a nonlinear way. In the Herschel-Bulkley model, the fluid is characterized by the consistency <math>k</math>, the flow index <math>n</math>, and yield shear stress <math>\tau_0</math>. The consistency is a constant of proportionality, and the flow index is a measure of non-linearity in the stress-strain curve - that is, how shear-thinning or shear-thickening the fluid is. The yield stress is the amount of stress the fluid must experience before it begins to flow.