PressureForces.cl File Reference

Tool to compute the fluid pressure force and moment. More...

#include "resources/Scripts/types/types.h"
#include "resources/Scripts/KernelFunctions/Kernel.h"

Include dependency graph for PressureForces.cl:

Functions
__kernel void	entry (__global vec *pressureForces_f, __global vec4 *pressureForces_m, const __global uint *iset, const __global int *imove, const __global vec *r, const __global vec *normal, const __global float *p, const __global float *rho, const __global float *m, usize N, unsigned int pressureForces_iset, vec pressureForces_r)
	Tool to compute the pressure force and moment for an especific body.

Detailed Description

Tool to compute the fluid pressure force and moment.

Function Documentation

entry()

__kernel void entry	(	__global vec *	pressureForces_f,
		__global vec4 *	pressureForces_m,
		const __global uint *	iset,
		const __global int *	imove,
		const __global vec *	r,
		const __global vec *	normal,
		const __global float *	p,
		const __global float *	rho,
		const __global float *	m,
		usize	N,
		unsigned int	pressureForces_iset,
		vec	pressureForces_r )

Tool to compute the pressure force and moment for an especific body.

The force at each boundary element is just \( \mathbf{f}_a = p_a \mathbf{n}_a s_a \) where \( s_a \) is the area of the element, stored in the masses array. The moment is consequently computed as: \( \mathbf{m}_a = \mathbf{f}_a \times \left(\mathbf{r}_a - \mathbf{r}_0 \right) \) with \( \mathbf{r}_0 \) the reference point where the moment should be computed.

Parameters

pressureForces_f	Force of each boundary element to be computed [N].
pressureForces_m	Moment of each boundary element to be computed [N \( \cdot \) m].
iset	Set of particles index.
imove	Moving flags. imove > 0 for regular fluid particles. imove = 0 for sensors. imove < 0 for boundary elements/particles.
r	Position \( \mathbf{r} \).
normal	Normal \( \mathbf{n} \).
p	Pressure \( p \).
rho	Density \( \rho \).
m	Mass \( m \).
N	Number of particles.
pressureForces_iset	Particles set to be computed.
pressureForces_r	Point with respect the moments are computed, \( \mathbf{r}_0 \).