作者: Fengshan Liu , Wenjun Kong
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摘要: The effect of the central air flow rate on structure and sooting characteristics a laminar double coflow methane/air diffusion flame was experimentally observed recorded by digital camera. generated using modified Gulder burner introducing an in centre fuel pipe. Numerical calculations at different rates were conducted solving elliptic conservation equations mass, momentum, species, energy axisymmetric cylindrical coordinates standard control volume method. Detailed multi-component thermal transport properties detailed combustion chemistry employed modelling. Soot formation modeled semi-empirical acetylene based model which two for soot mass fraction number density per unit solved. Thermal radiation calculated discrete-ordinates method 9-band non-grey radiative CO-CO2 -H2 O-soot mixture. numerical reproduced qualitatively experimental observations characteristics.Copyright © 2007 ASME National Research Council Canada