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中文摘要：
采用标准的k-ε湍流模型、EDC（涡耗散）燃烧模型和D0（离散坐标）辐射换热模型对多重射流燃烧反应器内的流动及燃烧状况进行了三维全尺寸数值模拟。研究了不同工艺条件下燃烧反应器内温度、速度以及各反应组分的分布状况，考察了燃烧反应器径向温度分布等参数对最终颗粒尺寸、形貌特征的影响规律，并与同工艺条件下实验结果进行了验证，数值模拟与实验结果吻合良好。所建立的数学模型为燃烧反应器结构设计和工艺条件优化提供了依据，同时模拟结果也为纳米颗粒成核生长过程的研究提供理论依据。
英文摘要：
Three-dimensional numerical simulation with full size of the flow and the comb process in the multi-jet flame combustion reactor was performed by using the standard k-ε turbulent model, EDC combustion model and discrete-ordinates radiation model. The temperature, velocity and species concentration distribution in the reactor under various process conditions, as well as the effects of the flame radial temperature on the size and morphology of the particles and aggregates were simulated and tested by the experimental data. The results from numerical simulation and experiment agree very well. This work will provide a theoretical basis for optimization of the geometrical structure and operational parameters of the combustion reactor as well as the study of nanoparticle growth process.
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