Abstract
The state-of-the-art of combustion models for implementation into 3D codes is presented. Flamelet models for premixed, non-premixed and partially premixed combustion are described and their implementation into 3D-codes is discussed. Flamelet modeling has the advantage of separating the numerical effort associated with the resolution of fast chemical time scales from the 3D-computation of the engine combustion cycle. A maximum of four scalar field equations have to be solved in the engine code in order to determine the flamelet position and its statistical distribution.
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