Glycerin at a mean temperature of 60°F flows in a 1.5? steel tube with a mean velocity of 16 in./sec. Answer the following questions concerning this flow: a) Is the flow laminar or turbulent? (Check text page 414 for condition) b) What is the shear stress at the center of the tube and at the wall (in psi)? c) If the tube is vertical and the flow is downward, will the pressure increase or decrease in the direction of flow? d) At what rate (in psi/ft)?
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