problem with raising temperature -- CFD Online Discussion Forums

June 15, 2016, 13:45	problem with raising temperature	#1
mokrane New Member mokrane Join Date: Aug 2009 Posts: 11 Rep Power: 16	Hello. I am simulating with fluent 2D- transient, axisymmetric swirl and UDF- the partially premixed combustion of biogas (40% ch4+60%co2) in a spark ignition engine for different values of equivalence ratio. My problem is that the temperature is always raising for all cases, which is not normal! Please help me The chemical reaction is: CH4+1.5CO2+3/ϕ (O2+3.76N2 )→2.5CO2+2H2 O+(3/ϕ-2)O2+11.28/ϕ N2

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