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Non-premixed diesel combustion-which code to use?

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Old   March 31, 2008, 16:13
Default Non-premixed diesel combustion-which code to use?
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joey
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I want to model a gas turbine combustor. Air enters the domain and passes a swirler. Downstream of the swirler diesel fuel is injected by a spray nozzle. My question: What Code is preferably used to model this problem? (I have already modelled some complex flows in Star-CD and Fluent 5/6. But they were all non-reacting, single phase flows.) Could anybody please comment on this? Thanks a lot!
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Old   April 1, 2008, 04:47
Default Re: Non-premixed diesel combustion-which code to u
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Dr. Flow Squad
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AVL FIRE? http://www.avl.com/wo/webobsession.s...jExNzQ_3D.html

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Old   April 1, 2008, 05:39
Default Re: Non-premixed diesel combustion-which code to u
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joey
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Thanks for your advice! But the choices are limited to Fluent, CFX or Star-CD. There are no other licenses available...
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Old   April 1, 2008, 17:34
Default Re: Non-premixed diesel combustion-which code to u
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Glenn Horrocks
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Hi,

Have a look at the CFX-RIF package as well. That may be useful. All the leading CFD codes will be able to model the flow. As for which is best - that is harder to answer. You will have to trial them and find out. Also talk to support as they know the software the best and can give you a head start.

Of course, if you are on an academic (or pirated!) license then your access to support is limited or zero. You get what you pay for!

Glenn Horrocks
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Old   April 2, 2008, 05:52
Default Re: Non-premixed diesel combustion-which code to u
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joey
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Thanks for the input! I think I'll stick to Fluent, because I know the interface. The PDF-Approach seems the way to go. I just asked for advice because I'm totally new to combustion modelling - so why not get used to another code? The licenses are academic indeed...
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Old   April 2, 2008, 17:24
Default Re: Non-premixed diesel combustion-which code to u
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Glenn Horrocks
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Hi,

As I previously mentioned I think you should also have a look at CFX-RIF. This package will allow you to generate flamelet libraries for the CFX solver to use in the combustion model. It can handle just about any fuel/oxidiser mixture and therefore more accurately capture the chemistry of the combustion. Whether this is more appropriate than a PDF approach depends on your application but I strongly suggest you have a look at it and be aware of what it can do.

Glenn Horrocks
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