Burning a CH4-H2 Mixture

November 10, 2007, 08:15

Dear CFD user

I want to run a reacting case burning an homogeneous mix of Methane and Hydrogen (of igual proportion 50:50). Unfortunately it seems this mixture reaction is not present in the librairies. What I tried instead is to established two reacting material (CH4-Air mixture and H2 Air mixture: both beeing reacting mixture). My domain was then multi-component field. I established both component as homogenous. Unfortunatly I am stock with this error:

One constraint equation is needed in the fluid model section for the multi-component fluid. Hydrogen Air mixture.

I cannot run my case and the solver give me an error. Does anybody know how to set-up a Burning Mixture of two different fuel?

Regards

November 12, 2007, 15:10

The libraries provided with CFX are for demonstration. For real use the tool CFX-RIF is required. With CFX-RIF you can generate libraries.

November 12, 2007, 17:01

Thanks joey

Is there anyone who would have this library already done? I do not have access to this software who generate the librairies. From the ANSYS page, it seems pretty easy to generate in my case.

Regards

November 10, 2007, 08:15	Burning a CH4-H2 Mixture	#1
Jonathan Lemay Guest Posts: n/a	Dear CFD user I want to run a reacting case burning an homogeneous mix of Methane and Hydrogen (of igual proportion 50:50). Unfortunately it seems this mixture reaction is not present in the librairies. What I tried instead is to established two reacting material (CH4-Air mixture and H2 Air mixture: both beeing reacting mixture). My domain was then multi-component field. I established both component as homogenous. Unfortunatly I am stock with this error: One constraint equation is needed in the fluid model section for the multi-component fluid. Hydrogen Air mixture. I cannot run my case and the solver give me an error. Does anybody know how to set-up a Burning Mixture of two different fuel? Regards

November 12, 2007, 15:10	Re: Burning a CH4-H2 Mixture	#2
joey2007 Guest Posts: n/a	The libraries provided with CFX are for demonstration. For real use the tool CFX-RIF is required. With CFX-RIF you can generate libraries.

November 12, 2007, 17:01	Re: Burning a CH4-H2 Mixture	#3
Jonathan Lemay Guest Posts: n/a	Thanks joey Is there anyone who would have this library already done? I do not have access to this software who generate the librairies. From the ANSYS page, it seems pretty easy to generate in my case. Regards

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