수송확률밀도함수 모델을 이용한 난류비예혼합 파일럿 안정화 화염의 해석
Transported probability density function modeling for turbulent nonpremixed pilot stabilized flame
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초록
The transported probability density function(PDF) model has been applied to simulate the turbulent nonpremixed piloted jet flame. To realistically account for the mixture fraction PDF informations on the turbulent non-premixed jet flame, the present Lagrangian PDF transport approach is based on the joint velocity-composition-turbulence frequency PDF formulation. The fluctuating velocity of stochastic fields is modeled by simplified Langevin model(SLM), turbulence frequency of stochastic fields is modeled by Jayesh-Pope model and effects of molecular diffusion are represented by the interaction by exchange with the mean (IEM) mixing model. To validate the present approach, the numerical results obtained by the joint velocity-compositionturbulence frequency PDF model are compared with experimental data in terms of the unconditional and conditional means of mixture fraction, temperature and species and PDFs.
Abstract
The transported probability density function(PDF) model has been applied to simulate the turbulent nonpremixed piloted jet flame. To realistically account for the mixture fraction PDF informations on the turbulent non-premixed jet flame, the present Lagrangian PDF transport approach is based on the joint velocity-composition-turbulence frequency PDF formulation. The fluctuating velocity of stochastic fields is modeled by simplified Langevin model(SLM), turbulence frequency of stochastic fields is modeled by Jayesh-Pope model and effects of molecular diffusion are represented by the interaction by exchange with the mean (IEM) mixing model. To validate the present approach, the numerical results obtained by the joint velocity-compositionturbulence frequency PDF model are compared with experimental data in terms of the unconditional and conditional means of mixture fraction, temperature and species and PDFs.
참고문헌 (17)
- Peters N, "Turbulent Combustion" (2000), Cambridge University Press
- Pitsch, H, "A Consistent flamelet formulation for non-premixed combustion considering differential diffusion effects", Combustion and Flame,, 114, pp.26~40 (1998)
- Kim S K, "Flamelet Modeling for Combustion Processes and $NO_{x}$ Formation in the Turbulent Nonpremixed $CO", H_{2}, Combustion Science and Technology, pp.2001, 168[DOI]
- Klimenko A Y, "Conditional moment closure for turbulent combustion", Prog. Energy Combust. Sci.,, 25, pp.595~687 (1999)
- Sreedhara S, "Modeling of turbulent, two-dimensional nonpremixed $CH_{4}", H_{2}$ flame over a bluff-body using first- and second- order elliptic conditional moment closures, 2005, pp.143, 119~134
- Kim G, "Conditional Moment Closure and Transient Flamelet Modeling for Detailed Structure and $NO_{x}$ Formation Characteristics of Turbulent Nonpremixed Jet and Recirculating Flames", Combust. Theory Modelling, 11(4), pp.527~552 (2007)
- S. B. Pope, "Lagrangian PDF methods for turbulent reacting flows", Annu. Rev. Fluid. Mech.,, 26, pp.23~63 (1994)
- P. Jenny, "PDF Simulations of a Bluff-Body Stabilized Flow", JCP, 169, pp.1~23 (2001)
- M. S. Anand, "Calculations of swirl combustors using joint velocity-scalar probability density function method", AIAA J., 35, pp.1143~1150 (1997)
- S. B. Pope, "PDF methods for turbulent reactive flows", Prog. Energy Combust. Sci, 11, pp.119~192 (1985)
- M. Muradoglu, "The Hybrid Method for the PDF Equations of Turbulent Reactive Flows: Consistency Conditions and Correction Algorithm", JCP, 172, pp.841~878 (2001)
- P. Jenny, "A Hybrid Algorithm for the Joint PDF Equation of Turbulent Reactive Flows", JCP, 166, pp.218~252 (2001)
- M. R. H. Sheikhi, "Velocity-scalar filtered mass density function for large eddy simulation of turbulent reacting flows", Physics of Fluids, 19(9) (2007)
- M.R.H. Sheikhi, "Frequency-Velocity-Scalar Filtered Mass Density Function for Large Eddy Simulation of Turbulent Flows", Physics of Fluids (2009)
- D.H.Rowinski,, "PDF calculations of piloted premixed jet flames", ,Combustion Theory and Modelling (2010)
- "University of Sydney webpage"[URL]
- "Gri-mech 2.11"[URL]