Commands list

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OUTPUT_SENSOR

Output

*OUTPUT_SENSOR
"Optional title"
coid, pid, $x_0$, $y_0$, $z_0$, $R$, csysid, ref, lagrange

Parameter definition

Variable
Description
coid
Sensor ID
pid
Sensor type or ID of part where the sensor is located
options: Part ID, DP (discrete particle), SPH, CFD or RB (rebar)
default: nearest part
$x_0$
Initial x-coordinate of sensor
$y_0$
Initial y-coordinate of sensor
$z_0$
Initial z-coordinate of sensor
$R$
Sensor radius (for pid=DP only)
csysid
Optional local coordinate system ID
ref
Reference system for velocity and displacement output
options:
0 $\rightarrow$ Output displacement/velocity relative local coordinate system
1 $\rightarrow$ Output displacement/velocity relative global origin
lagrange
CFD and DP sensor flag to let the sensor follow the material flow
options:
0 $\rightarrow$ Sensor fixed in space
1 $\rightarrow$ Sensor follows material

Description

A sensor can either sample the local state at a material point inside a specified part, or sample the discrete particle state at a specified fixed point in space (see PARTICLE_DOMAIN).

If referring to a part ID, the command will sample the local state at a material point initially located at coordinate $(x_0,y_0,z_0)$. The solver uses the nearest integration point and node (in the specified part) and outputs the sampled data to the ASCII file sensor.out.

If specifying pid=DP (discrete particles) the sensor is fixed in space and will sample the average particle density, velocity and pressure inside a sphere with radius $R$. The data is then output to the ASCII file particle_sensor.out.

Stresses, coordinates, displacements and velocities are output in the local coordinate system (if defined). Also the sensor location $(x_0, y_0, z_0)$ is defined in this local coordinate system.