Conditional filtering method for large-eddy simulation of turbulent nonpremixed combustion

2005 ◽  
Vol 17 (10) ◽  
pp. 105103 ◽  
Author(s):  
Seung Hyun Kim ◽  
Heinz Pitsch
Keyword(s):  
Large Eddy Simulation ◽  
Filtering Method ◽  
Nonpremixed Combustion ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Turbulent Nonpremixed

scholarly journals Large-eddy simulation of transcritical liquid oxygen/methane jet flames

2019 ◽  
Author(s):  
H. Müller ◽  
M. Pfitzner
Keyword(s):  
Computational Cost ◽  
Liquid Oxygen ◽  
Test Case ◽  
Rocket Engines ◽  
Flamelet Model ◽  
Nonpremixed Combustion ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Flow Features ◽  
Turbulent Nonpremixed

A numerical method to perform large-eddy simulations (LES) of nonpremixed liquid oxygen/methane (LOx/CH4) combustion at supercritical pressures is presented and the computational results are compared with available experimental data. The injection conditions of the considered test case resemble those in typical liquid-propellant rocket engines (LRE). Thermodynamic nonidealities are modeled using the Peng–Robinson (PR) equation of state (EoS) in conjunction with a novel volume-translation method to correct deficiencies in the transcritical regime. The resulting formulation is more accurate than the standard cubic EoS's without deteriorating their good computational efficiency. The real-gas thermodynamics model is coupled with the steady laminar flamelet model (SLFM) for turbulent nonpremixed combustion to incorporate chemical reactions at reasonable computational cost in the LES. A reduced reaction mechanism, which is validated with respect to the full mechanism, is used to generate a flamelet library. A comparison of the LES result with available OH* measurements shows that important flow features are well predicted.

Large eddy simulation of a turbulent nonpremixed piloted methane jet flame (Sandia Flame D)

2005 ◽  
Vol 30 (1) ◽  
pp. 549-556 ◽  
Author(s):  
M.R.H. Sheikhi ◽  
T.G. Drozda ◽  
P. Givi ◽  
F.A. Jaberi ◽  
S.B. Pope
Keyword(s):  
Large Eddy Simulation ◽  
Jet Flame ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Turbulent Nonpremixed

scholarly journals Large Eddy Simulation on the Effects of Pressure on Syngas/Air Turbulent Nonpremixed Jet Flames

2019 ◽  
Vol 192 (10) ◽  
pp. 1963-1996 ◽  
Author(s):  
Pietro P. Ciottoli ◽  
Bok Jik Lee ◽  
Pasquale E. Lapenna ◽  
Riccardo Malpica Galassi ◽  
Francisco E. Hernández-Pérez ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Jet Flames ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Turbulent Nonpremixed

An explicit filtering method for large eddy simulation of compressible flows

2003 ◽  
Vol 15 (8) ◽  
pp. 2279-2289 ◽  
Author(s):  
Joseph Mathew ◽  
Richard Lechner ◽  
Holger Foysi ◽  
Joern Sesterhenn ◽  
Rainer Friedrich
Keyword(s):  
Large Eddy Simulation ◽  
Compressible Flows ◽  
Filtering Method ◽  
Eddy Simulation ◽  
Large Eddy
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