Example Problem - Conservation of Momentum (4)
Channel: Thermofluids
Date: 2020-09-21

A water nozzle is to be attached to a vertical pipe as shown in the figure below. The engineer designing the piping system needs to know the force exerted on the coupling by the nozzle (including the weight of the nozzle itself and the force of the water pressure) so it can be designed effectively. The nozzle inlet diameter is 3 in, the outlet diameter is 1 in, the static pressure at the inlet is 19.2 psig, the weight of the empty nozzle (fabricated out of a stainless steel alloy) is 10 lbf, and it has an internal volume of 150 in^3.

Determine the horizontal and vertical forces acting on the coupling by the nozzle (lbf), being sure to indicate direction.