******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi All, First i wish all of you are fine and these bad days will past and you always be healthy, I am asking if I can implement *convective boundary conditions* in 2.5D simulations for my cases, for now i am using Robin boundary conditions for my 2D cases but still have a problem in 2.5D cases. any ideas for this outlet boundary conditions for my case *I am using for 2D * ---------------------------- <REGION REF="5"> <!-- Outlet --> <R VAR="u" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="D0/TimeStep" /> <R VAR="v" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="D0/TimeStep" /> <R VAR="p" USERDEFINEDTYPE="HOutflow" VALUE="0" PRIMCOEFF="1.0/(D0*Kinvis)" /> </REGION> -------------------- *and for my 2.5D using* -------------------------------------------- <REGION REF="5"> <!-- Outlet --> <N VAR="u" USERDEFINEDTYPE="HOutflow" VALUE="0" /> <N VAR="v" USERDEFINEDTYPE="HOutflow" VALUE="0" /> <N VAR="w" USERDEFINEDTYPE="HOutflow" VALUE="0" /> <D VAR="p" USERDEFINEDTYPE="HOutflow" VALUE="0" /> </REGION> --------------------------------------- is there any modifications in the new ver 5.0 regarding outlet boundary conditions? Thanks, Regards, Reda UPC Spain