[Nek5000-users] How to give NEK5000 boundary conditions to exodus mesh file

[nek5000-users at lists.mcs.anl.gov]

Thank you . 

So here the 1,2,3,4 refers to the Side set numbers that we give as B.C in ICEM? 

Thank you very much 

Sijo 



De: "nek5000-users" <nek5000-users at lists.mcs.anl.gov> 
À: "nek5000-users" <nek5000-users at lists.mcs.anl.gov> 
Envoyé: Jeudi 31 Mai 2018 14:52:40 
Objet: Re: [Nek5000-users] How to give NEK5000 boundary conditions to exodus mesh file 

I specify the boundary conditions in the usrdat subroutine using the following piece of code 

do i=1,nelt 
do j=1,2*ndim 
if(bc(5,j,i,1).eq.1) then 
cbc(j,i,1)='mv ' 
elseif(bc(5,j,i,1).eq.2) then 
cbc(j,i,1)='W ' 
elseif(bc(5,j,i,1).eq.3) then 
cbc(j,i,1)='W ' 
elseif(bc(5,j,i,1).eq.4) then 
cbc(j,i,1)='W ' 
else 
cbc(j,i,1)='E ' 
endif 
enddo 
enddo 

Marco 




On May 31, 2018, at 8:50 AM, [ mailto:nek5000-users at lists.mcs.anl.gov | 
nek5000-users at lists.mcs.anl.gov ] wrote: 

Hi Neks, 

I did the conversion of a mesh from ICEM to exodus file then to re2 file. 

But I am bit confused on the boundary conditions. Because from ICEM before I export to exodus I give the B.Cs as side set numbers and after the conversion to re2 I wont be able to put the boundary conditions in NEK format. 

So could you please tell me how you put the BC in NEK5000 format to a mesh file with exodus format. 

Thank you 
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