Hydrocylones offer a process intensified environment for rapid, high-throughput and relatively sharp particle classification or phase separation. One of the main performance limitations of hydrocyclone is bypassing of fines to the underflow. To address this limitation, a novel design modification of fitting thin concentric rings to the cylindro-conical section has been proposed. The Computational Fluid Dynamics (CFD) modeling based methodology has been adopted to validate the hypothesis. Predictions using Realizable k-ε, Reynolds Stress Model (RSM), and Large Eddy Simulation Wall Adopting Local Eddy viscosity (LES-WALE) turbulence models has revealed that LES-WALE matched better with the experimental observations. The experimental data included overall performance parameters and detailed observations of axial and tangential velocity profiles across the hydrocyclone. The validated CFD model and the methodology was then used to predict the behavior of the proposed designs. They established that the modifications held promise in reducing the bypass with additional benefits of sharper separation curve and finer D₅₀.

水力旋流器为快速、高通量和相对尖锐的粒子分类或相分离提供了一个过程强化环境。水力旋流器的主要性能限制之一是将细粒绕过底流。为了解决这个限制，已经提出了将薄同心环安装到圆柱圆锥部分的新颖设计修改。已采用基于计算流体动力学 (CFD) 建模的方法来验证假设。使用 Realizable k - ε 进行预测、雷诺应力模型 (RSM) 和采用局部涡粘度 (LES-WALE) 湍流模型的大涡模拟壁表明 LES-WALE 与实验观察结果更匹配。实验数据包括整体性能参数以及对整个水力旋流器的轴向和切向速度分布的详细观察。然后使用经过验证的 CFD 模型和方法来预测所提议设计的行为。他们确定，这些修改有望减少旁路，并带来更清晰的分离曲线和更精细的D _{50 的}额外好处。