Modeling and analysis of dilute phase pneumatic conveying of fine particles
Modeling and analysis of dilute phase pneumatic conveying of fine particles
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DOI：
10.1016/j.powtec.2013.08.014
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发表时间：
2013-11
影响因子：
5.2
通讯作者：
Niranjana Behera;V. Agarwal;M. Jones;K. Williams
中科院分区：
文献类型：
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作者：
Niranjana Behera;V. Agarwal;M. Jones;K. Williams
许多研究者提出了稀流型气力输送的数学模型。连续体方法是这类流建模最常用的方法。在本工作中，建立了一个数学模型，该模型以连续性、动量和能量方程等控制方程的形式出现。已经写出了包含颗粒温度参数的能量方程。在该模型中，稀输送模式被描述为以颗粒温度为特征的颗粒状气体的混沌运动。为了预测不同的参数，进行了仿真。预测的压降值与实验数据吻合较好。在正常系数和恢复系数不同的情况下，分析了绝对压力、颗粒温度等重要参数沿管道长度的变化规律。
Mathematical models of pneumatic conveying in dilute mode of flow have been presented by many researchers. Continuum approach is the most commonly used approach of modeling this kind of flow. In the present work a mathematical model has been developed which is in the form of governing equations such as continuity, momentum and energy equation. Energy equation has been written including a parameter called granular temperature. In this model, the dilute mode of conveying has been described as chaotically moving particles as granular gas characterized by granular temperature. Simulations have been performed in order to predict different parameters. The predicted pressure drop values were found to be in good agreement with the experimental data. Variations of important parameters such as absolute pressure, granular temperature along the length of the pipeline have been analyzed for different values of normal and restitution coefficients.