La Estela de los Buques

http://en.wikipedia.org/wiki/Wake

Formula para calcular la estela de un buque.

where:

g = the strength of the gravity field

ω is the angular frequency in radians per second

k = angular wavenumber in radians per metre

"deep" means that the depth is greater than half of the wavelength.

(Here, a radian is 1/(2π) of a wave.)

This formula has two implications:

1. The speed of the wave varies as the square root of the wavelength.
2. The group velocity of a deep water wave is half of its phase velocity.

Here:-

v is the velocity of the surface object that causes the wake.

c is the phase velocity of a wave: it may be the same for all frequencies (e.g. with electromagnetic waves, and sound waves in air), or it may vary with wave frequency (e.g. with waves on water).