Definitions for hydraulic diameter
hy·draulic di·am·e·ter

WikipediaRate this definition:0.0 / 0 votes

1. Hydraulic diameter

   The hydraulic diameter, DH, is a commonly used term when handling flow in non-circular tubes and channels. Using this term, one can calculate many things in the same way as for a round tube. It is defined as D H = 4 A P , {\displaystyle D_{\text{H}}={\frac {4A}{P}},} where A is the cross-sectional area of the flow, P is the wetted perimeter of the cross-section.More intuitively, the hydraulic diameter can be understood as a function of the hydraulic radius RH, which is defined as the cross-sectional area of the channel divided by the wetted perimeter. Here, the wetted perimeter includes all surfaces acted upon by shear stress from the fluid. R H = A P , {\displaystyle R_{\text{H}}={\frac {A}{P}},} D H = 4 R H , {\displaystyle D_{\text{H}}=4R_{\text{H}},} Note that for the case of a circular pipe, D H = 4 Π R 2 2 Π R = 2 R {\displaystyle D_{\text{H}}={\frac {4\Pi R^{2}}{2\Pi R}}=2R} The need for the hydraulic diameter arises due to the use of a single dimension in case of dimensionless quantity such as Reynolds number, which prefer a single variable for flow analysis rather than the set of variables as listed in the table. The Manning formula contains a quantity called the hydraulic radius. Despite what the name may suggest, the hydraulic diameter is not twice the hydraulic radius, but four times larger. Hydraulic diameter is mainly used for calculations involving turbulent flow. Secondary flows can be observed in non-circular ducts as a result of turbulent shear stress in the turbulent flow. Hydraulic diameter is also used in calculation of heat transfer in internal-flow problems.

How to pronounce hydraulic diameter?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say hydraulic diameter in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of hydraulic diameter in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of hydraulic diameter in Pythagorean Numerology is: 5

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hydraulic_Diameter