---------- Forwarded message --------- From: Moto Light <redamansyhh@gmail.com> Date: Thu, Apr 9, 2020 at 5:31 AM Subject: Hi All, convective boundary conditions To: <nektar-users@imperial.ac.uk> 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