udf dpm species

student2008 · March 26, 2015, 08:09

Hey Guys,

I concern with dpm combustion. I write an udf to define my own dpm laws. I need to access the mass fractions of my dpm species. I did not find a method to solve that problem. Is their anybody, who faced the same problem and may help me? Thanks in advance.

mac_09 · June 18, 2015, 01:44

Hi,

Have you solved your problem?

I am facing kind of similar problem. I want to access the particles species mass fractions in the UDF. I haven't found any variable for that.

Thanks in advanced.

Regards:
MAC

student2008 · July 9, 2015, 07:03

Hi Mac,

yes, I solved the problem. For combusting particles you cann only access the mass fractions of char, volatiles etc. You can find the macros in the help. If you have additional species you need to define them as a scalar or you have to use multicomponent particles. For multicomponent you can use TP_COMPONENT_INDEX_I to identify the particle species.

regards

March 26, 2015, 08:09	udf dpm species	#1
student2008 New Member Join Date: Jun 2013 Posts: 14 Rep Power: 12	Hey Guys, I concern with dpm combustion. I write an udf to define my own dpm laws. I need to access the mass fractions of my dpm species. I did not find a method to solve that problem. Is their anybody, who faced the same problem and may help me? Thanks in advance.

July 9, 2015, 07:03		#3
student2008 New Member Join Date: Jun 2013 Posts: 14 Rep Power: 12	Hi Mac, yes, I solved the problem. For combusting particles you cann only access the mass fractions of char, volatiles etc. You can find the macros in the help. If you have additional species you need to define them as a scalar or you have to use multicomponent particles. For multicomponent you can use TP_COMPONENT_INDEX_I to identify the particle species. regards qiang92 likes this.

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June 18, 2015, 01:44		#2
mac_09 New Member Luleå tekniska universitet Join Date: May 2015 Location: LTU, Luleå, Sweden Posts: 11 Rep Power: 11	Hi, Have you solved your problem? I am facing kind of similar problem. I want to access the particles species mass fractions in the UDF. I haven't found any variable for that. Thanks in advanced. Regards: MAC