On the closure of curvature in 2D flamelet theory - Normandie Université
Journal Articles Combustion and Flame Year : 2024

On the closure of curvature in 2D flamelet theory

Hernan Olguin
  • Function : Author
Christian Hasse
Arne Scholtissek

Abstract

So far, flamelet theory has treated curvature as an independent parameter requiring spe- cific means for closure. In this work, it is shown how, when two-dimensional flames in physical space are considered, the adoption of an orthogonal flamelet coordinate system allows ob- taining formal mathematical relations between the flame curvatures and the gradients of the conditioning scalars (also called flamelet coordinates). With these, both curvatures become a flame response to the underlying flow, which conveniently allows removing them from the corresponding set of flamelet equations. While the demonstration is performed in the context of partially premixed flames, the approach is general and applicable to any two-dimensional orthogonal coordinate system.
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Dates and versions

hal-04651649 , version 1 (17-07-2024)

Identifiers

  • HAL Id : hal-04651649 , version 1

Cite

Hernan Olguin, Pascale Domingo, Luc Vervisch, Christian Hasse, Arne Scholtissek. On the closure of curvature in 2D flamelet theory. Combustion and Flame, In press. ⟨hal-04651649⟩
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