PARTICLE_SPH_JET_LSC
Particle
Beta command
This command is in the beta stage and the format may change over time.
*PARTICLE_SPH_JET_LSC
sid
$x_1$, $y_1$, $z_1$, $w$, $\xi$
$x_2$, $y_2$, $z_2$
$x_3$, $y_3$, $z_3$
sid
$x_1$, $y_1$, $z_1$, $w$, $\xi$
$x_2$, $y_2$, $z_2$
$x_3$, $y_3$, $z_3$
Parameter definition
Variable
Description
sid
Particle subdomain ID
$x_1$, $y_1$, $z_1$
Coordinate 1
$w$
Correction domain width
$\xi$
Dimensionless jet correction parameter
$x_2$, $y_2$, $z_2$
Coordinate 2
$x_3$, $y_3$, $z_3$
Coordinate 3
Description
This command is exclusively used when modelling the formation of linear shaped charge (LSC) jets.
Numerical noise, from the interaction between SPH nodes and high explosive discrete particles, tends to laterally distort the formed jet. This distortion can be reduced with an increased number of particles. The price to pay is a higher computational cost.
With this command a computationally faster alternative to achieving a straighter jet is offered. It is based on artificially applied lateral impulses.
The domain where the impulse correction is active is defined as a box in space.
