本文通过理论分析和数值模拟系统地研究了辐射热损失对球形火焰传播速度的影响.研究结果表明辐射热损失的影响分为直接影响和间接影响:直接影响指辐射热损失会降低火焰温度,从而降低火焰传播速度;间接影响指辐射热损失导致的冷却会引起逆向火焰传播的流动,从而降低火焰传播速度.对近可燃极限预混气体,直接影响起主导作用;对高辐射强度预混气体,间接影响起主导作用.本文研究的结果对球形火焰法测量火焰传播速度有着重要的指导意义.
参考文献
| [1] | Zuohua Huang;Yong Zhang;Ke Zeng;Bing Liu;Qian Wang;Deming Jiang .Measurements of laminar burning velocities for natural gas-hydrogen-air mixtures[J].Combustion and Flame,2006(1/2):302-311. |
| [2] | Effects of hydrogen addition on the propagation of spherical methane/air flames: A computational study[J].International journal of hydrogen energy,2009(15):6558. |
| [3] | Chen, Z;Burke, MP;Ju, Y .Effects of compression and stretch on the determination of laminar flame speeds using propagating spherical flames[J].Combustion theory and modelling,2009(2):343-364. |
| [4] | Chen Z;Ju Y .Theoretical analysis of the evolution from ignition kernel to flame ball and planar flame[J].Combustion theory and modelling,2007(3):427-453. |
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