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旋风汽水分离器内液滴轨迹模拟研究 被引量:2

Simulation of Drop Track in Cyclone Stream-Water Separator
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摘要 旋风分离器内部汽水两相流场是非常复杂的三维强旋转湍流流动,液滴运动非常复杂,且带有很大的随机性,因此很难通过解析的方法预报内部流动状况。使用fluent软件,运用计算流体力学的方法对旋风分离器内部的液滴流动进行了数值仿真研究。结果表明,小粒径液滴与较大的粒径的液滴相比,由相同位置进入,其运动轨迹有所不同。小粒径液滴受气流脉动影响和受大粒径液滴的携带作用较为显著,对分离性能的影响较大。所以,液滴粒径越大,分离效率越高。 The strong swirl turbulent flow and the movement of drops in the cyclone separator are very complex and much more random.So it is very difficult to predict the law of flow with parse means.In order to study the condition of motion of the drops inside a stream cyclone separator of the type stairmand and it's mechanism of separation,three-dimensional numerical simulation of internal flow field of stream phase and the motion condition of drops in it were conducted by using the software fluent.The results show that the moving tracks of small drops and big drops are different,even if their original locations are the same.The effect of the flow pulse and the toted action from big drops is very marked for the small drops,so the probability of its appearance in second flow is also much,and the effect for the capability of separation is also much.therefore,the drop is more big,the separation efficiency is more high.
作者 李娜 陈保东
出处 《辽宁石油化工大学学报》 CAS 2010年第2期23-25,共3页 Journal of Liaoning Petrochemical University
关键词 旋风分离器 数值模拟 汽水两相流 分离效率 Cyclone separator Numerical simulation Stream-water two phase flow Separation efficiency
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