Viscosity measurement in fluid flowing around solid bodies is usually carried out
according to the following schemes:
• flow around a spherical or other surface moving in fluid with its resistance to
flow depending on fluid viscosity. The space occupied by fluid may be restricted
by solid walls or be infinite
• indentation of a solid body (indentor) into the fluid layer with shapes of the
indentor being different − conical, spherical, cylindrical, etc.