Chapt06

27 p633 p628 in prob 627 what will the flow rate be in

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Unformatted text preview: s of straws pA = 500 kPa 15 m 37° 20 m 50 cm 6 m/s P6.39 P6.40 P6.36. The inlet flow is air at 110 kPa and 20°C, moving at an average velocity of 6 m/s. Estimate the pressure drop *P6.42 across the honeycomb. Oil, with 880 kg/m3 and 0.08 kg/(m s), flows through a pipe with d 2 cm and L 12 m. The wall shear stress is 30 Pa. Estimate (a) the Reynolds number, (b) the total pressure drop, and (c) the power required to drive the fluid. SAE 10 oil at 20°C flows through the 4-cm-diameter ver- P6.43 tical pipe of Fig. P6.38. For the mercury manometer reading h 42 cm shown, (a) calculate the volume flow rate in m3/h and (b) state the direction of flow. P6.44 Light oil, 880 kg/m3 and 0.015 kg/(m s), flows down a vertical 6-mm-diameter tube due to gravity only. Estimate the volume flow rate in m3/h if (a) L 1 m and P6.45 (b) L 2 m. (c) Verify that the flow is laminar. EES SAE 30 oil at 20°C flows in the 3-cm-diameter pipe in Fig. P6.40, which slopes at 37°. For the pressure mea- | v v P6.38 P6.41 30...
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