Froude–Krylov force

From formulasearchengine
Jump to navigation Jump to search

In fluid dynamics, the Froude–Krylov force — sometimes also called the Froude–Kriloff force — is a hydrodynamical force named after William Froude and Alexei Krylov. The Froude–Krylov force is the force introduced by the unsteady pressure field generated by undisturbed waves. The Froude–Krylov force does, together with the diffraction force, make up the total non-viscous forces acting on a floating body in regular waves. The diffraction force is due to the floating body disturbing the waves.


The Froude–Krylov force can be calculated from:


In the simplest case the formula may be expressed as the product of the wetted surface area (A) of the floating body, and the dynamic pressure acting from the waves on the body:

The dynamic pressure, , close to the surface, is given by:


See also


  • {{#invoke:citation/CS1|citation

|CitationClass=book }}