Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Hydrostatic Force acting on Submerged Surface

Sponsored Links

The thrust force acting on a surface submerged in a liquid can be calculated as

F = p a A

= ρ g h a A                           (1)

where

F = thrust force (N)

p a = ρ g h a = average pressure on the surface (Pa)

A = area of submerged surface (m2)

h a = average depth (m)

ρ = density (kg/m3 )  (water 1000 kg/m3 )

g = acceleration of gravity (9.81 m/s2)

Example - The thrust force acting on the side of a container

The trust force acting on the submerged vertical side of a container can be calculated as

F = p a A

= ( (p t + p b ) / 2) A

= ( ρ g (h t + h b ) / 2) A (2)

where

p t = pressure at the top of the submerged surface (Pa)

p b = pressure at the bottom of the submerged surface (Pa)

h t = depth at the top of the submerged surface (m)

h b = depth at the bottom of the submerged surface (m)

The thrust on a surface with width 1 m and height from 0 m to 2 m - in a water-filled container can be calculated as

F = ( ρ g (h t + h b ) / 2) A

= (1000 kg/m3 ) (9.81 m/s2) ((0 m) + (2 m)) / 2) ( (1 m) (2 m) )

= 19620 N

= 19.6 kN

Example - The thrust force acting on the bottom of a container

The trust force acting on the horizontal bottom of a submerged container can be calculated as

F = p b A

= ρ g h b A (2b)

The thrust on a bottom with width 1 m and length 2 m - on depth 1 m - in a water filled container can be calculated as

F = ρ g h b A

= (1000 kg/m3 ) (9.81 m/s2) (1 m) ( (1 m) (2 m))

= 19620 N

= 19.6 kN

Sponsored Links

Related Topics

Fluid Mechanics

The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.

Related Documents

Archimedes' Law

Forces acting on bodies submerged in fluids.

Buoyancy

Buoyancy is the resultant force acting on a submerged body.

Center of Gravity

A body and the center of gravity.

Center of Gravity and Buoyancy

Stability - the center of gravity vs. the center of buoyancy.

Hydrostatic Pressure vs. Depth

Depth and hydrostatic pressure.

Underground Pipes - Earth Pressure

Pressure acting on underground pipes due to weight of soil and transport.

Sponsored Links

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.