# Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

17.

If the depth of water in an open channel is greater than the critical depth, the flow is called

 [A]. critical flow [B]. turbulent flow [C]. tranquil flow [D]. torrential flow

Explanation:

No answer description available for this question.

 Manohar said: (Aug 20, 2013) Streaming flow or tranquil flow is the flow when depth of flow in an open channel is greater than the critical depth.

 Krunal said: (Feb 13, 2017) If the depth of water in an open channel is greater than the critical depth, the flow is also called subcritical flow (slow flow).

 Manoj said: (Jan 5, 2018) What is critical depth?

 Avinash said: (Jan 12, 2018) When Froude no is less than 1 then the flow is said to be sub critical or Tranquil flow (both are same).

 Siva said: (Jun 19, 2018) The critical depth is the depth at which Froude number =1, F=v/√(gy) if depth is more than this it is subcritical flow or else supercritical flow.

 Kartheek said: (Nov 19, 2019) What is the significance of critical depth?

 Ali Rashad said: (Feb 7, 2020) The depth of water in a channel corresponding to the minimum specific energy is known as critical depth.

 Rupesh said: (Apr 2, 2020) As of my knowledge, The flow is very slow, Fr=1. Critical flow Fr>1. Supercritical flow (rapid flow) Fr<1. Subcritical flow (slow flow/Tranquil Flow) Fr> 1.

 Rajkotha said: (May 15, 2021) If the depth of water in an open channel is less than the critical depth, the flow is called torrential.