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首页> 外文期刊>International journal of computing science and mathematics >Computational fluid dynamics simulation for the prediction of the venturi scrubber performance using finite volume method
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Computational fluid dynamics simulation for the prediction of the venturi scrubber performance using finite volume method

机译：使用有限体积法预测文丘里洗涤器性能的计算流体动力学模拟

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摘要

The toxicity and severity of particulates and toxic gasses resulting from industrial activities on human health and environment is a major concern worldwide. Venturi scrubber is widely employed to abate the pollutant concentration because of their high removal efficiency. For an accurate and efficient design of venturi scrubber, the complex fluid dynamic behaviour inside the venturi scrubber needs to be understood. The present multiphase Euler-Lagrange CFD study successfully provides a computational model to predict pressure drop and collection efficiency by employing the commercial CFD package FLUENT. Throat gas velocities of 50, 70 and 100 m/s are simulated. Dust particles TiO_(2)having a diameter of 1 μm and density of 4.23 g/cm~(3)are used in this simulation work. The gas flow field is resolved in the Eulerian frame of reference while dust and droplet are treated in the Lagrangian framework. The turbulence of is modelled using realisable k-ε model, droplet secondary breakup through TAB model and drag coefficient is modelled through dynamic and spherical drag laws. Results of pressure drop and collection efficiency predicted by this model are found to be in good agreement with cited experimental and simulated values.
机译：颗粒物和有毒气体的毒性和严重程度因人类健康和环境而导致的毒性和有毒气体是全世界的主要关注点。由于其高脱模效率，Venturi洗涤器被广泛用于减少污染物浓度。为了准确，有效地设计文丘里洗涤器，需要理解文丘里洗涤器内的复杂流体动力学行为。本发明的多相欧拉拉格朗CFD研究成功提供了计算模型，以通过采用商业CFD包装流畅地预测压降和收集效率。模拟喉咙气体速度为50,70和100m / s。在该模拟工作中使用直径为1μm的TiO_（2）和4.23g / cm〜（3）的密度。在欧拉参考框架中，气体流场得到解决，同时在拉格朗日框架中处理灰尘和液滴。使用可实现的K-ε模型进行建模的湍流，通过动态和球形拖动法模型模型和拖动系数的液滴二次分手。该模型预测的压降和收集效率的结果与引用的实验和模拟值吻合良好。

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