Kinematic motion of fluid element:* fluid element: volume containing many fluid particles: Translation: Rotation ... the sphere surface.Integrated Normal ForceIntegrated Tangential ForceF _{t} =4 pi mu R nu _{INF }: Friction ... exhibits many characteristics of a solidEquation (2) is the generalized form for steady state rheological behavior
A wide range of rheological behavior can be accommodated. ... It is synonymous with “internal friction” and is a measure of “resistance to flow”. ... Rotation of the rod is greater in magnitude than the two mutually perpendicular components.Historical