How to check by UDF if a cell zone has a source term?

Valérie Gelbgras
Valérie Gelbgras Member, Employee Posts: 157
First Answer Solution Developer Community of Practice Member 5 Likes Ansys Employee
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edited June 2023 in Fluids

How to check by UDF if a cell zone has a source term?

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  • Valérie Gelbgras
    Valérie Gelbgras Member, Employee Posts: 157
    First Answer Solution Developer Community of Practice Member 5 Likes Ansys Employee
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    Answer ✓

    We can use THREAD_VAR(t).cell.sources

    This return 0 is there is no source term and 1 is there is a source term.

    Here is an example of DEFINE_ON_DEMAND using this function.

    #include "udf.h"
int zoneID = 2;

DEFINE_ON_DEMAND(check_if_zone_has_source)
{
    Thread *t;
    Domain *domain = Get_Domain(1);
    t = Lookup_Thread(domain, zoneID);
    Message0("\n\n %d \n\n", THREAD_VAR(t).cell.sources);
}

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