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Unformatted text preview: 0.95, you fill, to a depth of 12 cm, a large container which
drains through a 30-cm-long vertical tube attached to the
bottom. The tube diameter is 2 mm, and the rate of drain- Textbook Table of Contents | Study Guide Problems 407
D2 = 1 cm 3.7 atm
D1 = 0.25 mm B Q F 2.1 atm
A 3 cm P6.30 P6.24
ing is found to be 1.9 cm3/s. What is your estimate of the
fluid viscosity? Is the tube flow laminar?
P6.26 Water at 20°C is flowing through a 20-cm-square smooth
duct at a (turbulent) Reynolds number of 100,000. For a
“laminar flow element” measurement, it is desired to pack
the pipe with a honeycomb array of small square passages
(see Fig. P6.36 for an example). What passage width h will
ensure that the flow in each tube will be laminar (Reynonds
number less than 2000)?
P6.27 An oil (SG 0.9) issues from the pipe in Fig. P6.27 at
Q 35 ft3/h. What is the kinematic viscosity of the oil in
ft3/s? Is the flow laminar? P6.32 SAE 30 oil at 20°C flows at 0.001 m3/s through 100 m of
1-cm-diameter pipe and then for...
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This note was uploaded on 10/27/2009 for the course MAE 101a taught by Professor Sakar during the Spring '08 term at UCSD.
- Spring '08