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Effective (submerged) unit weight

Last modified by
on
Jun 6, 2022, 12:53:23 PM
Created by
on
Mar 24, 2014, 4:07:45 PM
Uw=m⋅(1-ρoρf)Uw=m⋅(1−ρoρf)
(m)Mass of object(m)Mass of object
(ρo)Density of object.(ρo)Density of object.
(ρf)Denisty of fluid.(ρf)Denisty of fluid.
Tags
Fluid Mechanics Fluid Dynamics
UUID
6fe63ffa-b36e-11e3-9cd9-bc764e2038f2

The Effective (submerged) Unit Weigth calculator computes the unit weight of a submerged object based on the saturated weight of the object and the density of the fluid (e.g. water).

INSTRUCTIONS: Choose units and enter the following:

  • (m) This is the mass of the object
  • (ρo) This is the density of the object
  • (ρf) This is the density of the fluid.

Effective (submerged) Unit Weight (Uw): The calculator return the unit weight in kilograms.  However, this can be automatically converted to compatible units via the pull-down menu.

The Math / Science

The Effective (submerged) unit weight is a civil engineering equation for is basically a submerged unit weight.

The equation for Effective (submerged) unit weight is:

Uw = m • ( 1 - ρo/ρf)

where:

  • Uw is the effective submerged unit weight
  • m is the mass of the object
  • ρo is the density of the object
  • ρf is the density of the fluid
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