Explore the Energy Glossary

Look up terms beginning with:

plastic fluid

1. n. [Drilling Fluids]

A fluid in which the shear force is not proportional to the shear rate (non-Newtonian) and that requires a finite shear stress to start and maintain flow. Most drilling muds are characterized as either plastic or pseudoplastic fluids.

See: Bingham plastic modelHerschel–Bulkley fluidnon-Newtonian fluidpower-law fluidpseudoplasticrheologyshear rateshear stressviscosity