TY - JOUR
T1 - Numerical description of the structure of counterflow heptane-air flames using detailed and reduced chemistry with comparison to experiments
AU - Chelliah, H. K.
AU - Bui-Pham, M.
AU - Seshadri, K.
AU - Law, C. K.
N1 - Funding Information:
The computer program which was used to perform the numerical calculations was obtained from Professor M.D. Smooke of Yale University. The work at Princeton University was supported by the NSF through Grant # CTS 8915397 and by the ARO through Grant # DAAL 03-90-G0-0220 and that at University of California at San Diego by the ARO through Grant # DAAL 03-90-9-0084.
PY - 1992
Y1 - 1992
N2 - Numerical calculations were performed using a simplified chemical kinetic mechanism to determine the structure of counterflow, heptane-air diffusion flames. The configuration used is a diffusion flame stabilized in the vicinity of a stagnation plane, which is formed by directing an oxidizing gas flow onto the vaporizing surface of a pool of heptane. The elementary chemical kinetic mechanism, referred to as the starting mechanism, consists of forty elementary reactions. The predicted structure of the flame using the starting mechanism was found to agree reasonably well with previous measurements. The calculations suggest that the outer flow in the experiments cannot be modeled using strictly rotational or strictly irrotational flow boundary conditions. Reduced chemical kinetic mechanisms, consisting of six and four overall steps, were deduced from the elementary chemical kinetic mechanism. The predicted structure of the flame using the reduced mechanisms agree reasonably well with that calculated by using the starting mechanism. The results suggest that a reduced fourstep chemical kinetic mechanism can predict the structure of the flame fairly accurately.
AB - Numerical calculations were performed using a simplified chemical kinetic mechanism to determine the structure of counterflow, heptane-air diffusion flames. The configuration used is a diffusion flame stabilized in the vicinity of a stagnation plane, which is formed by directing an oxidizing gas flow onto the vaporizing surface of a pool of heptane. The elementary chemical kinetic mechanism, referred to as the starting mechanism, consists of forty elementary reactions. The predicted structure of the flame using the starting mechanism was found to agree reasonably well with previous measurements. The calculations suggest that the outer flow in the experiments cannot be modeled using strictly rotational or strictly irrotational flow boundary conditions. Reduced chemical kinetic mechanisms, consisting of six and four overall steps, were deduced from the elementary chemical kinetic mechanism. The predicted structure of the flame using the reduced mechanisms agree reasonably well with that calculated by using the starting mechanism. The results suggest that a reduced fourstep chemical kinetic mechanism can predict the structure of the flame fairly accurately.
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U2 - 10.1016/S0082-0784(06)80103-7
DO - 10.1016/S0082-0784(06)80103-7
M3 - Article
AN - SCOPUS:0027012282
SN - 1540-7489
VL - 24
SP - 851
EP - 857
JO - Proceedings of the Combustion Institute
JF - Proceedings of the Combustion Institute
IS - 1
ER -