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December 24, 2006, 17:49 |
PDF combustion modeling
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#1 |
Guest
Posts: n/a
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Hi folks,
why the PDF combustion modeling is limited to incompressible flow only? Is it possible to extend this approach to compressible flows? Thanks Jim |
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December 26, 2006, 05:16 |
Re: PDF combustion modeling
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#2 |
Guest
Posts: n/a
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because combustion is being done at low mach numbers. snobs
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December 26, 2006, 11:19 |
Re: PDF combustion modeling
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#3 |
Guest
Posts: n/a
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preconditioning enables compressible codes to deal with not only low mach numbers but also very low Mach number.
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December 27, 2006, 13:57 |
Re: PDF combustion modeling
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#4 |
Guest
Posts: n/a
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what is meant by preconditioning and how this is done.???
regards sam |
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December 27, 2006, 20:10 |
Re: PDF combustion modeling
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#5 |
Guest
Posts: n/a
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Sam, Have a look at this link to know what is preconditioning: http://www.math.tau.ac.il/~turkel/precon.html Regards Jim
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December 29, 2006, 15:30 |
Re: PDF combustion modeling
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#6 |
Guest
Posts: n/a
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your density does not vary with mixture fraction in your pdf model!?
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December 29, 2006, 20:23 |
Re: PDF combustion modeling
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#7 |
Guest
Posts: n/a
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Donald, let us consider beta-PDF model, of course density is function of mixture fraction
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January 10, 2007, 03:46 |
Re: PDF combustion modeling
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#8 |
Guest
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this may be a silly question, but when we are modeling using pdf combustion, i was been told that if we opt for the compressibility effects, after creating pdf table, we can treat that flow as compressible. am i in wrong notion??
can u help me out srini |
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January 10, 2007, 03:47 |
Re: PDF combustion modeling
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#9 |
Guest
Posts: n/a
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this may be a silly question, but when we are modeling using pdf combustion, i was been told that if we opt for the compressibility effects, after creating pdf table, we can treat that flow as compressible. am i in wrong notion??, my mach numbers at the in the total combustion zone vary upto 0.34
can u help me out srini |
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March 6, 2010, 20:56 |
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#10 |
Member
李逾
Join Date: Mar 2010
Posts: 65
Rep Power: 16 |
hello:
I'm new in fluent,recentlly I got a work to complete a combustion simulation with fluent,but I do not have enough references and books to teach me how to finish it. could you pleasd sent some initial toturials to me.thank you very much! my E-mail:yubaibai88@163.com |
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October 25, 2022, 11:52 |
Combustion
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#11 |
New Member
Aylin
Join Date: Mar 2022
Posts: 2
Rep Power: 0 |
I need to do supersonic combustion in scramjet for my thesis. I am using Ansys fluent but i cant do nothing. I need some help about every steps in solution page
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