Particle Parameters
The parameters of the Particle module apply to all volumes and boundaries in Creo Flow Analysis. For the Particle module, the simulation is set to Transient.
Tracking Method
• Particle—Simulates motion of an individual particle.
• Streakline—Locus of particles that passed through a prescribed point.
Particle Type
Specifies the mass of the considered particles in a transient simulation, setting one of the following options:
• Massless—Sets the mass of the particles to zero so that particles follow the streamlines.
• Has Mass—Assigns a mass to the particles. The mass is determined by the values you set for Particle Density and Radius of Particles at the boundary where the particle is released.
Particle Density
This specifies the density of the particles in the flow.
1. Available only if you set Particle Type to Has Mass.
2. Default value for Particle Density is the density of water.
Gravity Force
Consider the effect of gravity for the particles. For Gravity Force to be active for Particle or Streakline, set Particle Type to Has Mass. To specify the effect of gravity, follow these steps:
1. Set Gravity Force to Yes.
2. Specify the gravity vector m/s2 in 
directions.
directions. | Setting Gravity Force to Yes activates the effect of gravity for the particles, but not the fluid. |