Abstract
We analyze the evolution of a diffusion flame in a turbulent mixing layer using large-eddy simulation. The large-eddy simulation includes Leray regularization of the convective transport and approximate inverse filtering to represent the chemical source terms. The Leray model is compared to the more conventional dynamic mixed model. The location of the flame-center is defined by the `stoichiometric' interface. Geometrical properties such as its surface-area and wrinkling are characterized using an accurate numerical level-set quadrature method. This allows to quantify flame-properties as well as turbulence modulation effects due to coupling between combustion and turbulent transport. We determine the active flame-region that is responsible for the main part of the chemical conversion in the flame and compare direct and large-eddy simulation predictions.
Original language | Undefined |
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Title of host publication | European Conference on Computational Fluid Dynamics: ECCOMAS CFD 2006 |
Editors | P. Wesseling, E. Oñate, J. Périaux |
Place of Publication | Delft |
Publisher | American Physical Society |
Pages | 452 |
Number of pages | 20 |
ISBN (Print) | 90-9020970-0 |
Publication status | Published - Sept 2006 |
Event | 4th European Conference on Computational Fluid Dynamics, ECCOMAS ECFD 2006 - Egmond aan Zee, Netherlands Duration: 5 Sept 2006 → 8 Sept 2006 Conference number: 4 |
Publication series
Name | |
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Number | 11 |
Conference
Conference | 4th European Conference on Computational Fluid Dynamics, ECCOMAS ECFD 2006 |
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Abbreviated title | ECCOMAS ECFD |
Country/Territory | Netherlands |
City | Egmond aan Zee |
Period | 5/09/06 → 8/09/06 |
Keywords
- EWI-9025
- METIS-238748
- IR-66866