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Dispersion Characteristics of Small Buoyant Particles in a Gat agitated Vessel

机译:小浮力小颗粒在门搅动容器中的分散特性

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Model experiments were made of the floating and dispersing characteristics of buoyant particles in a gas-agitated water vessel to learn the behavior of inclusion particles in a turbulent flow field of liquid steel. Hollow glass particles were put into the vessel, nitrogen gas was blown from the bottom of the vessel, and the particle concentration was measured by a silicon photodiode. It was found that the concentration of particles in the bulk water increased abruptly at a certain gas-flow rate and saturated at higher rates. This critical gas-flow rate was correlated well with the terminal velocity, and vessel geometries. Numerical simulation of the particle dispersion was also carried out using the k-ε model and the effect of turbulence on the particle behavior was discussed.
机译:对气体搅拌水容器中浮力颗粒的漂浮和分散特性进行了模型实验,以了解夹杂物颗粒在钢液湍流场中的行为。将空心玻璃颗粒放入容器中,从容器底部吹入氮气,并通过硅光电二极管测量颗粒浓度。已经发现,在一定的气体流速下,散装水中颗粒的浓度突然增加,而在较高的流速下饱和。该临界气体流速与终端速度和容器的几何形状密切相关。还使用k-ε模型对颗粒分散进行了数值模拟,并讨论了湍流对颗粒行为的影响。

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