Hi, I am trying to understand the session file "PPF_R15000_3D_VCS.xml." I have two confusion: 1) Since modeType is HalfMode than why "HomModesZ" is set to 2. I think this should be 1. 2) Since the base flow is 2D2C, then is it necessary to include variable "w" in the base flow? In general, can we use a base flow generated from DNS which only have variables (uvp) in the session file having FIELDS = (uvwp)? I would be highly thankful for the comments on this issue. With regards Abhishek Kumar --------------------------------------------------------------------------------------- Abhishek Kumar Research Associate Applied Mathematics Research Centre Coventry University, Coventry CV1 5FB The United Kingdom Email # ac7600@coventry.ac.uk, abhishek.kir@gmail.com ---------------------------------------------------------------------------------------