Question

What is the reynolds number for a flow of oil (s.G=0.8, =0.00200 lb.S/ft2) in a 6 in diameter pipe at a flow rate of 10 ft3/s. Is the flow laminar or turbulent?

Answer 1

While laminar flow is "orderly" turbulent flow is "Random" and "Chaotic". It is also found that a flow in a pipe is laminar if the Reynolds Number (based on diameter of the pipe) is less than 2100 and is turbulent if it is greater than 4000. Transitional Flow prevails between these two limits.