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Hydraulic Diameter of an Annulus

Last modified by
on
Aug 2, 2023, 7:02:45 PM
Created by
on
Nov 3, 2015, 2:27:19 PM
DH=DO-DI
(DO)Outer Diameter
(DI)Inner Diameter
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fd5ef5f8-8236-11e5-9770-bc764e2038f2

The Hydraulic Diameter of an Annulus calculator computes the hydraulic diameter based on the inner and outer diameter of the annulus.

INSTRUCTIONS: Choose units and enter the following:

  • (o) Outer diameter 
  • (i) Inner diameter 

Hydraulic Diameter (hd): The diameter is returned in meters.  However, this can be automatically converted to compatible units via the pull-down menu.

The Math / Science

The formula for the hydraulic diameter of an annulus is:

      hd = o - i

where:

  • hd = hydraulic diameter of an annulus
  • o = outer diameter 
  • i = inner diameter 


Hydraulic Diameter Calculators


This equation, Hydraulic Diameter of an Annulus, is used in 1 page
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