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Simulation of NO x Formation in Methane‐Air Turbulent Combustion Using an Improved Second‐Order Moment Model
Author(s) -
Zheng C. G.,
Zhou L. X.,
Yin J.
Publication year - 2001
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500090312
Subject(s) - turbulence , combustion , moment (physics) , methane , computation , probability density function , statistical physics , mathematics , nox , moment closure , mechanics , physics , chemistry , classical mechanics , algorithm , statistics , organic chemistry
Abstract The NO x formation in methane‐air turbulent combustion is simulated using an improved second‐order moment (NSOM) model of turbulence‐chemistry interaction. The predicted results from three different versions of the presumed probability density function (PDF) model are compared with the experimental data from the literature. The results show that the NSOM model with algebraic expression of second‐order moments is as good as the proposed PDF model using transport equations of second‐order moments, but the former needs much less computation time than the latter. Therefore, the NSOM model can be used to simulate turbulent combustion and NO x formation with detailed known chemistry, while the proposed PDF model is more difficult to apply.