Unformatted text preview: factor is 0.022 everywhere, and
pA 90 lbf/in2 gage. All pipes have a diameter of 6 in.
For water at 20°C, determine the flow rate in all pipes and
the pressures at points B, C, and D. e-Text Main Menu | P6.131 A water-tunnel test section has a 1-m diameter and flow
properties V 20 m/s, p 100 kPa, and T 20°C. The
boundary-layer blockage at the end of the section is 9 percent. If a conical diffuser is to be added at the end of the
section to achieve maximum pressure recovery, what
should its angle, length, exit diameter, and exit pressure
P6.132 For Prob. 6.131 suppose we are limited by space to a total diffuser length of 10 m. What should the diffuser angle, exit diameter, and exit pressure be for maximum recovery?
P6.133 A wind-tunnel test section is 3 ft square with flow properties V 150 ft/s, p 15 lbf/in2 absolute, and T 68°F.
Boundary-layer blockage at the end of the test section is
8 percent. Find the angle, length, exit height, and exit pressure of a flat-walled diffuser added onto the section to
achieve maximum pressure...
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- Spring '08
- Fluid Dynamics, e-Text Main Menu, Osborne Reynolds