A Laminar Flow Is Desired from a Tank with a Well-Rounded

Multiple Choice

A laminar flow is desired from a tank with a well-rounded entrance to a 6-mm-diameter pipe that drains the tank. A container catches 20 L of 20°C water in 4 minutes. Determine the
Reynolds number so one can decide if the flow is laminar.

A) 972
B) 1220
C) 1770
D) 1920