I have used the "bb" command within my mesh. I noticed that in a few locations where the "bb" command has been used it appears as though the mesh is separating right at the location of the "bb". Could this be a result of not including "stp" in my .tg file?
Block boundaries have matching independent nodes where they meet. One can attach a slave side to the master side of a block boundary with a transformation applied to the slave side (or even the master side) which means the master and slave do not have coincident nodes. This is the justification that we do not automatically merge the nodes at an interface. There is another reason, one that you may not ever encounter. TrueGrid® is also very good at building block structured CFD grids. Some codes allow for two grids to have a mismatch in mesh density typically with a ratio of 2:1 which the BB command supports. In such a case, it would be incorrect for TrueGrid® to merge the nodes.
More generally, TrueGrid® errors on the side of most general, requiring the user to be specific on what is wanted in the mesh. So the answer is, you need to issue the stp command.
