Skip to main content
padlock icon - secure page this page is secure

STUDY OF FLAME STABILIZATION IN A SWIRLING COMBUSTOR USING A NEW FLAMELET FORMULATION

Buy Article:

$61.00 + tax (Refund Policy)

The dynamics in a swirl-stabilized flame is studied using large eddy simulation (LES). We account for the effect of turbulence on the flame through a model based on a filtered flamelet technique. The model provides a consistent and robust reaction-diffusion expression for simulating the correct propagation of premixed flames. The filtered flamelet formulation has been implemented into a high-order-accurate LES code and used to study the flame stabilization and the combustion dynamics in a gas-turbine combustion chamber. The effects of inlet boundary conditions, in terms of velocity and equivalence ratio radial profiles, have been studied. The flow is found to be very sensitive to small changes in terms of flame shapes and anchoring position. The sensitivity of the results to the subgrid-scale flame thickness has also been investigated. The influence on the flame position is not significant. However, a too-large subgrid-scale flame thickness leads to different flame dynamics.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: flamelet; gas turbine; large eddy simulation; premixed combustion; swirling flow

Document Type: Research Article

Affiliations: Division of Fluid Mechanics, Department of Heat and Power Engineering, Lund Institute of Technology, Lund, Sweden

Publication date: August 1, 2005

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more