Abstract The success of flotation scale-up depends on understanding of the hydrodynamic condition of flotation cells at different scales and design specifications. In order to achieve this, it is very important to measure hydrodynamic parameters such as fluid velocity, turbulent kinetic energy (TKE) and turbulent kinetic energy dissipation rate (TKEDR) in flotation cells. There are many methods that are available to measure velocity and velocity fluctuations in turbulent fluids, especially for single-phase flows or two-phase flows, however very few of them can be used for flotation cells. In this study, constant temperature anemometry (CTA) and power measurement methods were used to measure the parameters in two scales of flotation cells. Acceptable correlation between the CTA measurements and the TKEDR has been found under different hydrodynamic conditions in both cells. It shows that this measurement technique enables the scale-up analysis for turbulence in flotation cells.

中文翻译：

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使用恒温风速测量法开发用于浮选槽湍流测量的放大技术

摘要 浮选放大的成功取决于对不同规模和设计规范的浮选槽水动力条件的了解。为了实现这一点，测量浮选槽中的流体动力学参数，例如流体速度、湍流动能 (TKE) 和湍流动能耗散率 (TKEDR) 是非常重要的。有许多方法可用于测量湍流中的速度和速度波动，特别是对于单相流或两相流，但很少有方法可用于浮选槽。本研究采用恒温风速法（CTA）和功率测量方法对浮选槽两个尺度的参数进行测量。在两个电池的不同流体动力学条件下，已发现 CTA 测量值和 TKEDR 之间可接受的相关性。它表明这种测量技术能够对浮选槽中的湍流进行放大分析。