About heat transfer, subroutine 'HETVAL' and Fortran compiler

Dear all,
    Is there any warmheated gentleman has the experience of heat transfer,
subroutine 'HETVAL' and Fortran compiler? And could you share your
experience about how to use the subroutine 'HETVAL' and especially
about Fortran compiler to calculate heat transfer process?

Thank you in advance!

Huaizheng


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