For each case, calculate an appropriate Reynolds number
Chapter 10, Problem 18P(choose chapter or problem)
Problem 18P
For each case, calculate an appropriate Reynolds number and indicate whether the flow can be approximated by the creeping flow equations, (a) A microorganism of diameter 5.0 μm swims in room temperature water at a speed of 0.25 mm/s. (b) Engine oil at MOT flows in the small gap of a lubricated automobile bearing. The gap is 0.0012 mm thick, and the characteristic velocity is 15 m/s. (c) A fog droplet of diameter 10 μm falls through 30°C air at a speed of 2.5 mm/s.
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