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发表于 2011-11-24 14:11:30
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finite-rate/eddy dissipation：The source term for species “i” is the sum of sources in all participating reactions, the term of species i in reacktion k is the smaller between Arrhenius rate and eddy breakup rate；unreliable when Da~1；can not predict intermediate species, i.e., can not use detailed kinetics; widely used because of simplicity and physical based.
EDC: detailed chemistry model like laminar finite rate model, but can predict turbulence-chemistry interaction. Computationally expensive; assumes that reaction occurs in small turbulent structures; only used when the assumption of fast chemistry is invalid. |
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