Problem 2. An engineer helps with the design of a rotating spray for a dishwasher. The spray has 4 identical jets spaced equally around the rim of a disc. Water enters though a hollow shaft and then flows radially out to the jets. The nozzle of the jet has a diameter D of 0.3 cm and makes an angle a = T /3 with the horizontal plane of the disc(See figure). The jets are oriented so that v2,=0. If the total flowrate Q=50 mL/s and the disc has radius R= 7.5 cm, determine the torque in dyne-cm required to keep the disc from rotating. Water jet Water flows Water in radially inside dise to jet View from top View from side

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Problem 2. An engineer helps with the design
of a rotating spray for a dishwasher. The spray
has 4 identical jets spaced equally around the
rim of a disc. Water enters though a hollow
shaft and then flows radially out to the jets.
The nozzle of the jet has a diameter D of 0.3
cm and makes an angle a = I (3 with the
horizontal plane of the disc(See figure). The
jets are oriented so that v2r=0. If the total
flowrate Q=50 mL/s and the disc has radius R=
7.5 cm, determine the torque in dyne-cm
required to keep the disc from rotating.
Water jet
R.
Water flows
radially inside dise
to jet
Water in
View from top
View from side
Transcribed Image Text:Problem 2. An engineer helps with the design of a rotating spray for a dishwasher. The spray has 4 identical jets spaced equally around the rim of a disc. Water enters though a hollow shaft and then flows radially out to the jets. The nozzle of the jet has a diameter D of 0.3 cm and makes an angle a = I (3 with the horizontal plane of the disc(See figure). The jets are oriented so that v2r=0. If the total flowrate Q=50 mL/s and the disc has radius R= 7.5 cm, determine the torque in dyne-cm required to keep the disc from rotating. Water jet R. Water flows radially inside dise to jet Water in View from top View from side
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