Numerical investigation on particles removal by bubble flotation in swirling flow
Numerical investigation on particles removal by bubble flotation in swirling flow
复制标题
旋流中气泡气浮去除颗粒的数值研究
DOI:
10.1007/s42243-022-00748-w
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发表时间:
2022-02
期刊:
影响因子:
--
通讯作者:
Tan Min
中科院分区:
文献类型:
--
作者:
Cui Henan;Li Tao;Zhu Yulin;Tan Min
The removal of particles is of great importance in many fields including effluent treatment, mineral separation, clean metal production, etc. However, most of the researchers paid their attention to the two-phase flow involving gas-liquid or solid-liquid independently. The motion and interaction between bubbles and particles in the swirling three-phase flow field were simulated by discrete phase model. The swirling flow and the collision between bubbles and particles were governed by compiling the user-defined function program. The centripetal pressure gradient force pushes the discrete phases toward the central region, where the collision rate between particle and bubbles is improved greatly. Moreover, it proved beneficially for particle removal to increase the swirling velocity, particularly for larger particles. Thus, bubble flotation is an effective method to remove particles from the fluid. The swirling velocity was optimized, which is valuable for industrial design.
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