1. Simulation of High Temperature Air Combustion with modified Eddy-Break-Up combustion model.
- Author
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Su, Yaxin, Chen, Cuiwu, and Su, Along
- Subjects
COMBUSTION ,HIGH temperatures ,COMPUTATIONAL fluid dynamics ,FLAME ,REYNOLDS stress ,ENERGY consumption ,SIMULATION methods & models ,MATHEMATICAL models - Abstract
Abstract: The numerical modeling of High Temperature Air Combustion (HTAC) could correctly predict the flame and emission characteristics so far, however, the precision is not satisfactory. In this paper, a parameter-modified Eddy-Break-Up (EBU) model with a three-step reaction scheme was used to simulate the HTAC process in a furnace of 2m ×2m×6.25m. Reynolds stress model (RSM) is used for the computational fluid dynamics (CFD) simulation. Comparison between experimental data from published papers, the original and modified EBU combustion models demonstrates that a smaller coefficient ‘A’ in the volumetric fuel consumption rate of the EBU model could improve the modelling precision. When ‘A’ is modified to be 1 other than its original value, 4, in the EBU model, the modeling could give improved results of the local distribution of CH4, temperature and NO emission. [Copyright &y& Elsevier]
- Published
- 2012
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