reaction panel or udf

wlt_1985 · October 13, 2010, 13:42

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

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

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

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

October 13, 2010, 13:42	reaction panel or udf	#1
wlt_1985 Senior Member raymond Join Date: Nov 2009 Posts: 149 Rep Power: 16	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.

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October 13, 2010, 23:57		#2
coalgas Member chétan Join Date: May 2009 Location: Australia Posts: 55 Rep Power: 16	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.

October 15, 2010, 03:59		#4
wlt_1985 Senior Member raymond Join Date: Nov 2009 Posts: 149 Rep Power: 16	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?

October 18, 2010, 02:50		#6
coalgas Member chétan Join Date: May 2009 Location: Australia Posts: 55 Rep Power: 16	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.