helpers.h File Reference

Declaration of the discrete delta function. More...

#include "types.h"

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Functions
real	dhRoma (real x, real h)
	Discrete delta function from Roma et al. (1999). More...
real	delta (real x, real y, real h)
	Two-dimensional discrete delta function. More...

Detailed Description

Declaration of the discrete delta function.

Definition in file helpers.h.

Function Documentation

real delta	(	real	x,
		real	y,
		real	h
	)

Two-dimensional discrete delta function.

Parameters

x	x-coordinate of the grid point
y	y-coordinate of the grid point
h	grid-spacing in the uniform region

Returns

the value of the discrete Delta function in 2D

Definition at line 44 of file helpers.cu.

References dhRoma().

real dhRoma	(	real	x,
		real	h
	)

Discrete delta function from Roma et al. (1999).

A.M. Roma, C.S. Peskin, M.J. Berger. An adaptative version of the immersed boundary method. J. Comput. Phys. 153, 509-534 (1999).

Parameters

x	coordinate of the grid point
h	grid-spacing in the uniform region

Returns

the value of the discrete delta function

Definition at line 22 of file helpers.cu.

Referenced by delta().