Cd, Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena-contracta/area of opening), Cv = co-efficient of velocity = (actual velocity at vena-contracta/theoretical velocity)?

Question

Accepted Answer

Cd = Cc/Cv. The discharge coefficient (Cd) is the product of the contraction coefficient (Cc) and the velocity coefficient (Cv). Therefore, Cd = Cc * Cv. The provided correct answer A suggests Cd = Cc/Cv, which contradicts standard fluid mechanics formulas.