Description: You define the initial location of each tracer particle to be coincident with a node in the Eulerian mesh, called the “parent node.” These parent nodes are grouped into a tracer set, and you can request node and element output for a particular tracer set. With tracer particles you can track the Lagrangian motion of specific material points; you can also track the pressure history of these material points during an Eulerian analysis. Tracer particle output is not supported when using Eulerian mesh motion or adaptive mesh refinement.