Perform unit conversions and determine Re for the case when a fluid with density of 92.8 lbm/ft3 and viscosity of 4.1 cP (centipoise) flows with a velocity of 237 ft/min in a pipe with 28 inch diameter.

Re = (density*velocity*diameter) / viscosity

Re=309926.13

Explanation:

density=92.8lbm/ft3 * (0.45kg/1lbm) * (1ft3/0.028m3) = 1491.43kg/m3

viscosity=4.1cP * ((1*10-3kg/m*s) / 1cP) = 0.0041kg/m*s

velocity=237ft/min * (1min/60s) * (0.3048m/1ft) = 1.2m/s

diameter=28inch * (0.0254m/1inch) = 0.71m

Re = (density*velocity*diameter) / viscosity = (1491.43kg/m3*1.2m/s*0.71m) / 0.0041kg/m*s

Re=309926.13