7.3. Carbon dioxide flows in a 50 mm pipe at a velocity of 1.5 m/s, temperature 66°C, and absolute pressure 380 kPa. Is the flow laminar or turbulent?
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- Drive an expression for the loss in laminar flow.Water flows through the piping junction, entering section 1 at 20 US gallons/min (1 US gal = 3.78 L). The average velocity at section 2 is 2.5 m/s. A portion of the flow is diverted through the shower head, which contains 100 holes of 1-mm diameter. Assuming uniform shower flow, estimate the exit velocity from each hole of the the shower head. Answer should be in m/s.Air at 1.7 atm gauge and l5°C enters a horizontal 75-mm steel pipe that is 70 m long. The velocity at the entrance ofthe pipe is 60 m/s. Assuming isothermal flow, what is the pressure at the discharge end of the line?