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Multiple DEFINE_PR_RATE UDFs in parallel

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Old   April 21, 2021, 04:53
Default Multiple DEFINE_PR_RATE UDFs in parallel
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I am using a DPM and species model with a DEFINE_PR_RATE UDF for calculating the reaction rate of my particles.

Currently, it is only a one step reaction with thus a single reaction rate. Now I want to expand this to a three-step reaction where there are three different reaction rates.

I can however only couple a single DEFINE_PR_RATE UDF from what I believe. Is there any way I can either couple more of these UDFs or make the current UDF return three reaction rates?

I have also tried modelling my reaction with a different DEFINE_DPM_HEAT_MASS UDF, though I found this results in a substantial numerical error (I think this has to do with stabilization).

Any help would be appreciated!
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discrete phase model, kinetics, particle surface reaction

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