UDF for the population balance model
I have a question about the Population balance model in Fluent that i hope you can give some advice about. i am trying to use this model to simulate the atomization resulting from an airblast atomizer. obviously, i will not be able to do that unless i manipulate the values of the breakage frequency.
i found out the Fluent provided Define macro
DEFINE PB BREAK UP RATE(name, cell, thread, d 1, d 2, freq, pdf)
However, i am not sure if the freq can be treated as a flow field variable or not. i need to make the freq function of the cell variables such as turbulence quantities and drop diameter. but i am not sure if the define macro will support this or not.
one way to know this is to use the User Defined Memory to display the contours of the freq in order to see wether it changes from one cell to another or not. However, this is also a very tricky process which i was not able to do so far.
i hope that you can advise me about that. any info will be very appreciated.
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