Tool to compute the fluid pressure force and moment. More...
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, uint 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, | ||
| uint | 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, \( \mathbf{r}_0 \).
