Due to the fact that I have got major problems with growing pyramids from my structured domains into the unstructured area ( I use gridgen), I decided to split those quad elements, and grow thetrahedrals from them.

Now the domains aren't connected nicely anymore (hanging edges, nodes are still matching) and I have to use the non-conformal grid option in Fluent to overcome. I haven't found until now (also not on this Forum) any major drawbacks of the non-conformal grid option (except sometimes partioning problems). Probably there are some unforseen disadvantages by using this method. Who can help me...

Hi, Using non-conformal mesh is powerfull but must be carefull. I will tell you basic steps in working with that kind of grid. Please give me your mail to send you that information

please i'need the geometie in gambit of helical ribbon