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Article Dans Une Revue Combustion and Flame Année : 2023

A self-consistent extension of flamelet theory for partially premixed combustion

Hernan Olguin
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Christian Hasse
Arne Scholtissek

Résumé

Orthogonal coordinate systems represent an attractive alternative for the formulation of twodimensional composition space equations for partially premixed combustion: They avoid the need of closure models for a cross scalar dissipation rate and allow for a direct recovery of the corresponding flamelet equations in the asymptotic limits of non-premixed and premixed combustion. Despite these remarkable features, this kind of coordinate systems still present some important unsolved issues, which have limited their application so far. These difficulties are mainly associated with i) the lack of an appropriate formalism for the definition of two variables having orthogonal gradients in the entire flame domain and ii) the absence of corresponding closure models for the gradients
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Dates et versions

hal-04264894 , version 1 (30-10-2023)

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Hernan Olguin, Pascale Domingo, Luc Vervisch, Christian Hasse, Arne Scholtissek. A self-consistent extension of flamelet theory for partially premixed combustion. Combustion and Flame, 2023, 255, pp.112911. ⟨10.1016/j.combustflame.2023.112911⟩. ⟨hal-04264894⟩
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