Hydraulic diameter

Formula

Hydraulic diameter formula
Dh
hydraulic diameter of the pipe
A
cross-sectional area (of the fluid)
P
wetted perimeter (the length of the water exposed to air is NOT included)

Formula description

For shapes such as squares, rectangular or annular ducts (where the height and width are comparable) the characteristic dimension for internal flow situations is taken to be the hydraulic diameter.

Calculator (how to use calculator?)

Hydraulic diameter formula
A
P
Dh
Precision

Formula code





References

  1. Wikipedia:Hydraulic diameter.

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