Conditional moment closure calculations of a swirl-stabilized, turbulent nonpremixed methane flame

2007 ◽  
Vol 151 (3) ◽  
pp. 397-411 ◽  
Author(s):  
M. Fairweather ◽  
R.M. Woolley
Keyword(s):  
Moment Closure ◽  
Conditional Moment ◽  
Conditional Moment Closure ◽  
Methane Flame ◽  
Turbulent Nonpremixed

IMPLEMENTATION OF THE CONDITIONAL MOMENT CLOSURE MODEL TO A TURBULENT NONPREMIXED H2/CO-AIR FLAME STABILIZED ON A BLUFF BODY

1999 ◽  
Vol 23 (3-4) ◽  
pp. 425-433 ◽  
Author(s):  
S.- H. Kim ◽  
T. Liu ◽  
K.Y. Huh
Keyword(s):  
Bluff Body ◽  
Reaction Rates ◽  
Moment Closure ◽  
Scalar Dissipation ◽  
Conditional Moment ◽  
Turbulent Diffusion Flame ◽  
Recirculating Flow ◽  
Conditional Moment Closure ◽  
Mass Fractions ◽  
Turbulent Nonpremixed

A turbulent nonpremixed flame of H2/CO-air stabilized on a bluff-body is simulated by the conditional moment closure (CMC) model. Full spatial variation of the conditional quantities is taken into account for an elliptic recirculating flow field. Comparison has shown reasonable agreement for the conditional and Favre mean temperature and mass fractions of CO and H20 between calculation and experiment. Overprediction of the peak OH mass fraction is attributed to inaccurate modelling of the conditional scalar dissipation rate. The CMC model is capable of predicting major features of a turbulent diffusion flame characterized by finite chemical reaction rates.

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