Engineering, 05.03.2021 19:50, isophk
Consider cold windy breeze parallel to your face, with an average facial dimension along the flow of 5cm. The air velocity is 1 m/s (corresponding to 2.2 miles per hour). Assume laminar flow.
Required:
a. Calculate the thickness of the velocity boundary layer at the end of the 5cm length.
b. Calculate the thickness of the thermal boundary layer at the end of the 5 cm length.
c. Provide the physical meanings of the two thicknesses in items 1) and 2).
Answers: 1
Engineering, 04.07.2019 18:10, niicoleassssssf
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
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