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内循环厌氧反应器多相流流场的三维数值分析

Keywords: 内循环厌氧反应器,数值模拟,多相流,流场,固含率

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Abstract:

利用数值模拟的方法,引入欧拉双流体多相流模型及标准k-ε紊流模型,模拟计算内循环厌氧反应器的三相流三维流场,并通过改变污泥颗粒密度及进水流量,针对固相流速及固含率的变化情况,分析条件的改变对流场的影响。研究结果表明,应用数值模拟方法可以获得内循环厌氧反应器内的流场特征;污泥颗粒密度及进水流量的改变对于反应器内污泥颗粒的流速及分布的均匀性有较为明显的影响。模拟结果对反应器的应用及优化设计具有一定的参考价值。

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