The so-called "thixo" index is derived by measuring this property at different shear rates. One form of this property is the coefficient of proportionality between shear stress and the velocity gradient. By Stokes's Law, the drag force on a sphere is equal to six pi times the sphere's diameter times its velocity times this property of the fluid. (*) Newtonian fluids have a constant value for this property, which comes in dynamic and kinematic forms. For 10 points, name this resistance of a fluid to flow.
The so-called "thixo" index is derived by measuring this property at different shear rates. One form of this property is the coefficient of proportionality between shear stress and the velocity gradient. By Stokes's Law, the drag force on a sphere is equal to six pi times the sphere's diameter times its velocity times this property of the fluid. (*) Newtonian fluids have a constant value for this property, which comes in dynamic and kinematic forms. For 10 points, name this resistance of a fluid to flow.
The so-called "thixo" index is derived by measuring this property at different shear rates.
viscosity 