how can I define this wall boundary condition ?
how can I define the wall boundary condition which the heat flux fluctuates with the time? Must I use the tool of UDF?
Re: how can I define this wall boundary condition
It's the way I'd do it.
It's really not that difficult to write a simple UDF like that. There is a good example in the UDF docs that should be easy to modify.
See section 10.1.2 of the UDF guide, entitled "Transient Velocity Inlet Profile for Flow in a Tube" (udf/node230.htm) in my installation.
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