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首页> 外文期刊>Engineering Applications of Computational Fluid Mechanics >Mathematical Modelling of Flow and Heat/Mass Transfer During Reactive Spraying Deposition Technology (RSDT) Process for High Temperature Fuel Cells
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Mathematical Modelling of Flow and Heat/Mass Transfer During Reactive Spraying Deposition Technology (RSDT) Process for High Temperature Fuel Cells

机译：高温燃料电池反应喷雾沉积技术（RSDT）过程中流动和热/质量传递的数学模型

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AbstractA three-dimensional mathematical model of flow and heat/mass transfer coupling with chemical reactions for fuel gas and droplet combustion during reactive spraying deposition technology (RSDT) is presented in this paper. The RNG k- ε model is employed in the numerical simulation of turbulent combustion gas flow. The droplet particle is tracked and analyzed in a Lagrangian frame. The heating and vaporization histories of the injected droplet are also calculated during its movement. The three-dimensional distributions of velocity, species concentration and temperature are numerically obtained. The results indicate that the droplet will disappear over a very short distance and the vaporized fuel gas will burn immediately. Both the methods and the results described in this paper will help in the control of the final catalyst particle size and the optimization of the microstructure of the catalyst layer.
机译：摘要提出了反应性喷涂沉积技术（RSDT）中燃料气体和液滴燃烧的化学反应与流动和热/质传递耦合的三维数学模型。 RNGk-ε模型用于湍流燃烧气流的数值模拟。在拉格朗日框架中跟踪和分析液滴粒子。注入的液滴的运动过程中也会计算出它们的加热和蒸发历史。数值获得了速度，物种浓度和温度的三维分布。结果表明，液滴将在很短的距离内消失，汽化的燃料气体将立即燃烧。本文所述的方法和结果都将有助于控制最终催化剂的粒径和优化催化剂层的微观结构。

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