Hi
I'm a bit confused about which macro can be used to change the material property that is changing with temperature?, is it DEFINE_PROPERTY or DEFINE_ PROFILE?
I have found the thread (link) below which used DEFINE_PROFILE whereas there are some examples in ANSYS UDF manual use DEFINE_PROPERTY. Can anybody explain to me what is the difference?.
https://www.cfd-online.com/Forums/fluent-udf/139979-temp-dependent-emissivity-udf.html#post718649
In my model there are some boundaries (walls) that their emissiviy change with temperature. For example
for a specific wall at T=200 C emissivity = 0.80 T=400 C emissivity = 0.82 T=600 C emissivity = 0.84
How can I write the suitable UDF for this case? and which macro do I need to use?
Any help is much appreciated
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