Article ID Journal Published Year Pages File Type
661373 International Journal of Heat and Mass Transfer 2007 9 Pages PDF
Abstract

The paper assesses the significance of thermal radiation in turbulent non-premixed natural gas flames confined in axisymmetric furnaces. The in–house developed computational model includes simulation of the turbulent flow characteristics, the controlling mixing and chemical mechanisms as well as radiation modeled via the six-flux and of the P-1 models. A variable absorption coefficient is taken into account for the gaseous combustion mixture based on temperature and composition of the mixture. The results with and without radiation are evaluated as part of the complete prediction procedure involving flow, combustion, convection, and radiation phenomena. The comparative assessment of the two radiation models against experimental data indicates that they can be easily applied in engineering cases, with the P-1 model yielding more accurate results in the case considered.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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