Difference between revisions of "Kochin Function"

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= Introduction =
+
{{incomplete pages}}
  
 
The Kochin function  
 
The Kochin function  
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\mathbf{H}(\tau)=\iint_{\Gamma_s}\left( -\frac{\delta\phi}{\delta n}
 
\mathbf{H}(\tau)=\iint_{\Gamma_s}\left( -\frac{\delta\phi}{\delta n}
 
+ \phi\frac{\delta}{\delta n}\right)  e^{kz}e^{ik(x\cos\tau
 
+ \phi\frac{\delta}{\delta n}\right)  e^{kz}e^{ik(x\cos\tau
+y\sin\tau)}dS,
+
+y\sin\tau)}\mathrm{d}S,
 
</math></center>
 
</math></center>
 
where <math>\delta/\delta n</math> is the inward normal derivative,
 
where <math>\delta/\delta n</math> is the inward normal derivative,
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the [[Radiated Energy in Three-Dimensions]], and the [[Wave Forces in Three-Dimensions]]
 
the [[Radiated Energy in Three-Dimensions]], and the [[Wave Forces in Three-Dimensions]]
 
can be calculated from the Kochin Function.
 
can be calculated from the Kochin Function.
 +
 +
[[Category:Linear Water-Wave Theory]]

Latest revision as of 19:25, 8 February 2010


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

[math]\displaystyle{ \mathbf{H}(\tau)=\iint_{\Gamma_s}\left( -\frac{\delta\phi}{\delta n} + \phi\frac{\delta}{\delta n}\right) e^{kz}e^{ik(x\cos\tau +y\sin\tau)}\mathrm{d}S, }[/math]

where [math]\displaystyle{ \delta/\delta n }[/math] is the inward normal derivative, [math]\displaystyle{ \phi }[/math] is the velocity potential and [math]\displaystyle{ \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.