The flow is steady and you applied the continuity equation correctly to this pro

Question

The flow is steady and you applied the continuity equation correctly to this problem, first to compute the mass flow rate at location 2 where all of the variables are known, and then to determine the velocity at location 1.

Water at 15°C flows through a nozzle that contracts from a diameter of 5 cm to 2 cm. The exit speed is v2 = 35 m/s, and atmospheric pressure prevails at the exit of the jet. Calculate the pressure at section 1 and the force required to hold the nozzle stationary. Neglect weight.

A control volume for the nozzle is selected as shown.

Which of the following forces acting on the control volume in the x-direction are significant?

The flow is steady and you applied the continuity equation correctly to this problem, first to compute the mass flow rate at location 2 where all of the variables are known, and then to determine the velocity at location 1.

Explanation / Answer

A and C. B is on the pipe. D is vertically down while we are analysing horizontally.

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