Please,tell me : the DEFINE_INIT macro is called only after the initialization of a problem at the very beginning of the FLUENT session or it' s called at every time-step initialization ? Can I use this function to correct a physical property of fluid very time-step ?
Best wishes, Mikhail
Re: about DEFINE_INIT
DEFINE_INIT should be called only when you press the Initialise option, ie. before any Fluent calcs.
To do your own calcs., at each iteration use the DEFINE_ADJUST routine which works in the same way, but is called at each iteration. If you only want to update after a time step, use the RP_Get_Real("flow-time") routine to determine a change in the current time. I think there's an example of this function in one of the tutorial/UDF manual.
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