Urgent! Help on UDF to set B.C. of 3rd type
 

Dear friends,

While programming using source code, it is very easy to send B.C. of any type, for example:

C (1) B.C. of the first type DO 100 J=NJ1+1,NJ FIM(1,J) = 0.0 100 CONTINUE

C (2) B.C. of the second type DO 200 J=1,NJ1 FIM(1,J) = FIM(2,J) 200 CONTINUE

C (3) B.C. of the third type DO 300 I=2,NI FIM(I,1)=FIM(I,2)+DHM0*VYCV(1)*COS(PI*X(I)/DLMAG) 300 CONTINUE

When solving the UDS, how to set the B.C. of the second and third types?

Thank you very much in advance.

Ray