Use the Release from Edge node to release particles into the modeling domain from a set of selected edges in a 3D geometry.

Except for the Initial Position section described below, all settings are the same as for the Release node.

Select an Initial position: Mesh based (the default), Density, or Random. Mesh Based, Density, and Random have the same settings as described for the Release node. If Uniform distribution is selected, enter the Number of particles per release N (dimensionless). The union of the selected edges is divided into N segments of approximately equal length, and a particle is placed in the middle of each segment.