# Kochin Function

From WikiWaves

The Kochin function [math]\mathbf{H}(\tau)[/math] is given by

where [math]\delta/\delta n[/math] is the inward normal derivative, [math]\phi[/math] is the velocity potential and [math]\Gamma_s[/math] is the wetted body surface.

Many physical parameters, such as the Scattered Wave in Three-Dimensions, the Radiated Energy in Three-Dimensions, and the Wave Forces in Three-Dimensions can be calculated from the Kochin Function.