What do "collision" and "geometry" do in DualSPHysics-coupling-Chrono
Hi, I am reading page 4 of the "XML_GUIDE_CHRONO", not sure how to use the command <collision> and <geometry>.
Does the "collision" only define the interaction between boundary particle and boundary particle? If I only care about the interaction between fluid particle and boundary particle, do I still need to set <collision>?
I have no idea what does the <geometry> command do. Anyone please help me explain it in more details?