Large eddy simulation (LES) is a promising tool for numerical simulations of reacting flows, especially when combustion instabilities are encountered. In a first step toward prediction of such instabilities, LES of acoustically excited turbulent premixed flames is performed using a thickened flame a
Scalar transport modeling in large eddy simulation of turbulent premixed flames
โ Scribed by S. Tullis; R.S. Cant
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 170 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1540-7489
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A combined experimental and large eddy simulation (LES) study of flame kernel growth in isotropic, homogenous turbulence has been carried out. LES calculations using the combustion methodology of Weller were compared with experimental measurements from a fan-stirred bomb for iso-octane and propane a
Predictions of scalar mixing and the scalar dissipation rate from large-eddy simulations of a piloted nonpremixed methane/air diffusion flame (Sandia flame D) using the Lagrangian-type flamelet model are presented. The results obtained for the unconditionally filtered scalar dissipation rate are qua
The flame surface density approach to the modeling of premixed turbulent combustion is well established in the context of Reynolds-averaged simulations. For the future, it is necessary to consider large-eddy simulation (LES), which is likely to offer major advantages in terms of physical accuracy, p
A model for countergradient transport recently developed by us for one-dimensional freely propagating turbulent premixed flames is extended here to the case of flames impinging on a wall. According to this approach, the progress variable flux is split into a gasdynamics (pressure-driven, countergrad