What is the range of the coefficients of hydrodynamic resistances for the protruding edges at inlet?

The coefficients of hydrodynamic resistances for the protruding edges at inlet typically range from 0.6 to 1.2, depending on the geometry of the protrusion, the angle of the inlet, the Re (Reynolds number), and other fluid properties. These coefficients represent how the protrusions impede fluid flow, affecting the total hydrodynamic resistance encountered by a fluid as it moves past these edges. The precise value within this range would depend on specific conditions, including the shape of the protruding edge and the velocity of the fluid. Therefore, for accurate determination, one would typically refer to fluid mechanics handbooks or perform computational fluid dynamics (CFD) simulations.