|July 17, 2013, 03:51||
Easy question:c value at boundary
Join Date: Mar 2009
Posts: 11Rep Power: 9
Shortly and to the point: I have set up a partially premixed combustion case, where a perfect mixture of fuel and air are discharged into a chamber where fresh air is passing by from further upstream.
so I have:
Air inlet ---> burners (fuel+air) --> chamber --> outlet
The trouble is that I get completely different results depending on the value of c at the air-only boundary condition. Fluent says so you can set either c=0 or c=1. Only with c = 1 the results make sense, all the fuel is nicely burnt.
Of course I set c=0 at the fuel-air inlet.
I am considering switching to non-premixed only. I think that with the partially premixed set-up, you get inconsistent results in terms of temperatures and compositions. I guess I'm misunderstanding something.
Any prior experience on how to deal or better understand what the partially premixed model does is appreciated.
Thanks in advance
Last edited by cactilio86; July 17, 2013 at 06:08. Reason: I missed half a sentence at the end
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