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-   -   reaction panel or udf (https://www.cfd-online.com/Forums/fluent/81015-reaction-panel-udf.html)

wlt_1985 October 13, 2010 13:42

reaction panel or udf
 
I am going to model a chemical reaction instead of combustion, i.e esterification. Is it a necessary for me to compute the chemical reaction with udf? Or may I just using the reaction panel available in Fluent? Please help.

coalgas October 13, 2010 23:57

you can use reaction panel, for reaction between acid and alcohol. UDF will be useful if you want to use customerised reaction rate equation oresle Fluent will calculate reaction rate with inbuilt models.

wlt_1985 October 14, 2010 00:57

Quote:

Originally Posted by coalgas (Post 279097)
you can use reaction panel, for reaction between acid and alcohol. UDF will be useful if you want to use customerised reaction rate equation oresle Fluent will calculate reaction rate with inbuilt models.

Thanks for help. :)

wlt_1985 October 15, 2010 03:59

I have found that the chemical species used in esterification are not available in database. So, I define the individual properties of chemical species. Is it a necessary for me to define the properties of that mixture of chemical species? Can it be just ignored?

wlt_1985 October 15, 2010 12:22

Quote:

Originally Posted by coalgas (Post 279097)
you can use reaction panel, for reaction between acid and alcohol. UDF will be useful if you want to use customerised reaction rate equation oresle Fluent will calculate reaction rate with inbuilt models.

I need to define my own chemical species for reaction. Hence I need to define the properties of mixture. The properties of mixture are just for properties of mixture of reactants? Or properties of mixture of reactantsand products? Please help.

coalgas October 18, 2010 02:50

you need to define only properties of reactants. Properties of Mixture usually determined by various models by selecting appropriate options from Mixture panel. Mixture panel is the place where you should define your reaction and select species.

wlt_1985 October 18, 2010 07:47

Quote:

Originally Posted by coalgas (Post 279538)
you need to define only properties of reactants. Properties of Mixture usually determined by various models by selecting appropriate options from Mixture panel. Mixture panel is the place where you should define your reaction and select species.

Thanks for help :)


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