TITLE:
RANS and LES Modeling of the GE10 Burner
AUTHORS:
Valerio Battaglia, Roberto Modi, Vincent Moreu, Vladimir Zimont
KEYWORDS:
Turbulent Premixed Combustion, Gas Turbine Burner, Joint RANS/LES Simulation
JOURNAL NAME:
Energy and Power Engineering,
Vol.3 No.5,
November
25,
2011
ABSTRACT: The paper presents 1) the numerical results of RANS (Reynolds Averaging Navier-Stokes) simulations for two versions of the premixed combustion GE10 burners: the old one with non-premixed and modified one with swirled premixed pilot flames; and 2) the numerical results of joint RANS/LES (Large Eddy Simulation) modelling of the ONERA model burner and a simplified GE10 combustor. The original joint RANS/LES approach is based on using the Kolmogorov theory for modelling sub-grid turbulence and combustion intensity and using RANS numerical results for closure the LES model equations. The main conclusion is that developed joint RANS/LES approch is the efficient timesaving tool for simulations both the average and instantaneous fields of parameters in gas turbine and boiler burners with premixed combustion.