Hi all! I will give you about my condition.xml ,I hope someone can help me to refine it. In parameters list, p0,rho0Inf,u0Inf,v0Inf,w0Inf are parameters on the first inlet called ' REF="0" ',pc,rhocInf,ucInf,vcInf wcInf are parameters on the second inlet ' REF="2" '.They are all static values. p0e is the static pressure on the first outlet called " REF="1" ' , pce is the static pressure on the second outlet called " REF="3" '. I want to use 'PressureOutlet' boundary condtions ,how to write the condtions? On the REF="4" ,i want to use the 'WallAdiabatic',how to write it? Hope you can write your answer in my condition.xml ,i will learn it as a reference! Looking forward to your reply!