...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Numerical simulation of hydrocyclones
【24h】

Numerical simulation of hydrocyclones

机译：水力旋流器的数值模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A numerical method is presented for the calculation of the three-dimensional flow and separation efficiency for particles with low concentrations in a hydrocyclone. Multi-block curvilinear grids in the frame of a cylindrical coordinate system are used to represent accurately the hydrocyclone geometry. Turbulence is represented by a modified k - ε model which adds a curvature correction term with a single empirical constant in the dissipation equation. Both three- and two-dimensional axisymmetric computations are carried out and are compared with experimental data. It is shown that the standard k - ε model can produce large errors which result in incorrect predictions of the flow patterns. The three-dimensional calculations using the modified k - ε model produce results in good agreement with experimental data. The two-dimensional axisymmetric calculations can predict approximate flow patterns, but are inadequate to predict the separation efficiency of hydrocyclones. To analyze the separation efficiency, a three-dimensional model, as developed in the present study, is required.
机译：提出了一种数值方法的计算三维流和分离效率较低的粒子水力旋流器的浓度。曲线网格的框架柱坐标系统是用于表示准确的水力旋流器的几何形状。由k -ε模型进行修改添加一个与单一曲率修正项经验常数的耗散方程。两三个,二维轴对称进行计算和比较与实验数据。标准k -ε模型可以产生大的错误导致错误的预测流模式。使用修改后的k -ε模型产生的结果良好的协议与实验数据。二维轴对称计算可以预测近似流模式,但预测分离效率不足水力旋流器。效率,三维模型,在目前的研究中,开发是必需的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号