# Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

1.

The hydraulic mean depth or the hydraulic radius is the ratio of

 [A]. area of flow and wetted perimeter [B]. wetted perimeter and diameter of pipe [C]. velocity of flow and area of flow [D]. none of these

Explanation:

No answer description available for this question.

 Jayram Prajapati said: (Sep 22, 2016) What is hydraulic mean depth?

 Ajay said: (Oct 23, 2016) Hydraulic mean depth: Hydraulics, mean depth, hm, is defined as the depth which, when multiplied by the top water surface width, T, is equal to the irregular section area, A. The equation for hydraulic mean depth, hm, is, Hydraulic Radius : Hydraulic radius, Rh, is defined as the area of the flow section divided by the wetted perimeter, Pw.

 Pintu said: (Dec 14, 2016) Hydraulic mean depth = 4A/m. A = area of flow. m = wetted perimeter.

 S Bera said: (Jun 25, 2017) Here, m=a/p.

 Karthikeyanarvi said: (Jan 24, 2018) What is wetted perimeter?

 Sara F. Mustafa said: (Jun 8, 2018) That portion of the perimeter of a stream-channel cross-section that is in contact with the water.

 Rishi said: (Aug 3, 2019) M = 4A/P.