Large eddy simulation and experimental study of flashback and blow-off in a lean partially premixed swirled burner

2004 ◽  
Vol 5 ◽  
Author(s):  
Y. Sommerer ◽  
D. Galley ◽  
T. Poinsot ◽  
S. Ducruix ◽  
F. Lacas ◽  
...  
Keyword(s):  
Experimental Study ◽  
Large Eddy Simulation ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Partially Premixed

Large Eddy Simulation of a Lean Gas Turbine Model Combustor

2009 ◽  
Author(s):  
M. Staufer ◽  
J. Janicka
Keyword(s):  
Experimental Data ◽  
Large Eddy Simulation ◽  
Flame Surface ◽  
Eddy Simulation ◽  
Partially Premixed Combustion ◽  
Large Eddy ◽  
Partially Premixed ◽  
Partially Premixed Flame ◽  
Presumed Pdf ◽  
Pdf Model

Partially premixed flames although common on many technical devices are difficult to model in numerical simulations. In this paper a Large Eddy Simulation of a lean combustor is presented. To account for mixing effects in case of partially premixed combustion, a suitable extension to the well known coherent flame model (CFM) is applied. The turbulent reaction rate of the partially premixed flame is approximated by solving an additional transport equation for the flame surface density which accounts for flame wrinkling effects as well as for the creation and destruction of flame surface due to stretch and strain effects. The variation of stoichiometry in the flame is accounted for by using a suitable presumed PDF methodology. The pdf-model represents finite rate, as well as non-equilibrium chemistry effects in the flame. The model has been validated against experimental data. The results show an overall reasonable agreement with experimental data, both in profile shapes as well as peak values.

scholarly journals Large-eddy simulation and experimental study of deflecting oscillation of planar opposed jets

2013 ◽  
Vol 62 (8) ◽  
pp. 084704
Author(s):  
Tu Gong-Yi ◽  
Li Wei-Feng ◽  
Huang Guo-Feng ◽  
Wang Fu-Chen
Keyword(s):  
Experimental Study ◽  
Large Eddy Simulation ◽  
Eddy Simulation ◽  
Large Eddy
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