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UDF for time dependent stepwise heat flux profile

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Old   April 15, 2015, 06:32
Exclamation UDF for time dependent stepwise heat flux profile
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I study natural convection flow in enclosures. I wrote a UDF for sinusoidal temperature change with time at the boundary before. I want to write a UDF for a stepwise heat flux profile. The wall heat flux change with the frequency about a mean value. Maximum heat flux is 150W/m2, minimum heat flux is 50W/m2 and mean value is 100W/m2.

Please can you help me to write the UDF?

Thanks a lot.
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