Water at 20 °C flows through a horizontal 1-mm-diameter tube to which are attached two pressure taps a distance 1 m apart. (a) What is the maximum pressure drop allowed if the flow is to be laminar? (b) Assume the manufacturing tolerance on the tube diameter is D = 1.0 0.1 mm. Given this uncertainty in the tube diameter, what is the maximum pressure drop allowed if it must be assured that the flow is laminar? 5.

Elements Of Electromagnetics
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5.
Water at 20 °C flows through a horizontal 1-mm-diameter
tube to which are attached two pressure taps a distance 1 m apart.
(a) What is the maximum pressure drop allowed if the flow is to
be laminar? (b) Assume the manufacturing tolerance on the tube
diameter is D = 1.0 0.1 mm. Given this uncertainty in the tube
diameter, what is the maximum pressure drop allowed if it must
be assured that the flow is laminar?
Transcribed Image Text:5. Water at 20 °C flows through a horizontal 1-mm-diameter tube to which are attached two pressure taps a distance 1 m apart. (a) What is the maximum pressure drop allowed if the flow is to be laminar? (b) Assume the manufacturing tolerance on the tube diameter is D = 1.0 0.1 mm. Given this uncertainty in the tube diameter, what is the maximum pressure drop allowed if it must be assured that the flow is laminar?
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