For an open channel, the flow may be laminar or turbulent. To determine if open channel flow is laminar, the Reynolds Number, Re, must be which of the following?

Question

Quizplus · Accepted Answer

To determine if open channel flow is laminar, Re must be less than 500. The limit for turbulent flow in an open channel is Re >1,000. For pipe flow, the limits are as follows:
Laminar: Re < 2,000
Turbulent: Re > 4,000

For an Open Channel, the Flow May Be Laminar or Turbulent