On 11 Apr 2020, at 20:14, Moto Light <redamansyhh@gmail.com> wrote:

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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 Quasi-3D simulations for my cases, for now i am using Robin boundary conditions for my 2D cases but still have a problem in Quasi-3D 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 Quasi-3D 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

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