massed_initial_use_fluid

ptrace.massed_initial_use_fluid(p0: str) → int

Specify whether to use the velocity of the fluid at the particle emitter location as the initial velocity of the massed-particle.

The default value is ON. The “ptrace: massed_particles” command does not have to be ON in order to specify this command. This parameter is figured in all terms of the massed-particle momentum balance equation. If the value of this command is OFF, then the massed-particle emitter will use the velocity specified via the “ptrace: massed_initial_velocity” command.

Args:

p0:

‘toggle’

• ON

• OFF

Examples:

#
# Create a massless point trace
#
ensight.part.select_all()
ensight.ptrace.select_default()
ensight.part.modify_begin()
ensight.ptrace.variable("velocity")
ensight.part.modify_end()
ensight.part.select_all()
ensight.ptrace.create_pt()
ensight.part.select_begin(2)
#
# Do not use the field velocity as the initial particle velocity
# Specify the initial velocity value for all the massed-particles
#
ensight.part.modify_begin()
ensight.ptrace.massed_initial_use_fluid("OFF")
ensight.ptrace.massed_initial_velocity(1.0000e+00,1.0000e+00,1.0000e+00)
ensight.part.modify_end()
#
# Change part to massed trace using current settings
#
ensight.part.modify_begin()
ensight.ptrace.massed_particles("ON")
ensight.part.modify_end()

Returns:

zero on success, non-zero on error