A nozzle is often added to the end of a garden hose to produce a larger...

 

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A nozzle is often added to the end of a garden hose to produce a larger exit velocity for the water. Consider a nozzle attached to the end of a 3/8-in. internal diameter hose flowing 0.4 gallons per minute (gpm). a) Use the Bernoulli equation to predict the pressure difference, in units of psi, between the entrance and the exit of a nozzle with an exit diameter 1/6th of its entrance diameter. b) If only 83% of the pressure difference computed to answer part "a" is available across the nozzle, express the new flow rate as a percentage of the flow rate of part "a". Ap= Qb psi %Qa A nozzle is often added to the end of a garden hose to produce a larger exit velocity for the water. Consider a nozzle attached to the end of a 3/8-in. internal diameter hose flowing 0.4 gallons per minute (gpm). a) Use the Bernoulli equation to predict the pressure difference, in units of psi, between the entrance and the exit of a nozzle with an exit diameter 1/6th of its entrance diameter. b) If only 83% of the pressure difference computed to answer part "a" is available across the nozzle, express the new flow rate as a percentage of the flow rate of part "a". Ap= Qb psi %Qa

Answer rating: 100% (QA)

a First we need to find the velocity at the entrance and exit of the nozzle using the given flow rat... View the full answer