A Methodology for Soot Prediction Including Thermal Radiation in Complex Industrial Burners

作者：Lecocq Guillaume^*; Poitou Damien; Hernandez Ignacio; Duchaine Florent; Riber Eleonore; Cuenot Benedicte

来源：Flow, Turbulence and Combustion, 2014, 92(4): 947-970.

DOI：10.1007/s10494-014-9536-6

• Turbulent combustion
• Large Eddy simulation
• Soot modeling
• Mixed reduced-tabulated chemistry
• Radiative transfer
• Coupling

This paper proposes a method for modeling soot when performing Large Eddy Simulation of complex geometries. To obtain a good trade-off between CPU cost and accuracy, soot chemistry is included via a tabulated flamelet approach, combined to a turbulent combustion model for Large Eddy Simulation based on a simplified description of chemistry. A semi-empirical soot model is chosen and validated on laminar premixed and counterflow diffusion flames. A proposed procedure enables to calculate radiation with a Discrete Ordinates Method approach and optimized spectral models. The developed soot model is applied to a real configuration, being the combustion chamber of a helicopter engine. To evaluate the importance of radiative heat losses, two cases are studied, using either adiabatic conditions or accounting for radiative heat gains/loss.

• 出版日期2014-6