Falling Sphere Viscosimeter.
Falling Sphere Viscosimeter
The viscosity of a fluid characterizing its resistance to flow, it is considered that the displacement study of a body in a motionless liquid is identical to that of the flow of the fluid around this static body. By measuring the falling speed of a spherical ball in a vertical tube filled with the fluid to study, it is possible to deduce kinematic viscosity. Indeed, during the phase of the uniform rectilinear motion, the various forces which apply to the ball ; gravity, the pressure of Archimède and the force of trail related to viscous friction, are in balance.
The falling sphere viscometer can be used to determine :