...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of hydraulic research >3D CFD analysis of the performance of oblique and composite side weirs in converging channels
【24h】

3D CFD analysis of the performance of oblique and composite side weirs in converging channels

机译：3D CFD分析融合通道倾斜和复合侧堰性能的CFD分析

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

Conventional rectangular side weirs installed along prismatic open-channels may have low efficiency. One practical way to overcome this problem may be to insert the weir in the oblique side of a converging channel. In this paper, the performance of oblique straight side weirs or two-segment single-cranked side weirs inserted in rectangular converging channels are analysed through 3D computational fluid dynamics (CFD) for subcritical steady flow conditions. The numerical simulations were performed through a widely available software package by applying the VOF method to the Reynolds-averaged Navier-Stokes equations and adopting the Reynolds stress model for turbulence closure. The model is validated against experimental data previously obtained by the authors. The results provide insight into the features of the flow field and show the effect of the channel contraction rate on diversion efficiency. As regards the two-segment single-cranked weir, the "concave" arrangement has been verified as being more efficient than the "convex" one.
机译：沿着棱镜开放通道安装的传统矩形侧堰可能具有低效率。克服这个问题的一种实用方法可以是将堰插入融合通道的倾斜侧。在本文中，通过3D计算流体动力学（CFD）分析了插入矩形会聚通道中的倾斜直侧堰或两段单曲面侧堰的性能，用于亚临界稳定流动条件。通过将VOF方法应用于Reynolds平均的Navier-Stokes方程，通过广泛可用的软件包进行数值模拟，并采用雷诺应力模型进行湍流闭合。该模型针对先前由作者获得的实验数据验证。结果提供了进入流场的特征的洞察，并显示了通道收缩率对导流效率的影响。关于双段单曲堰，“凹陷”布置已被验证为比“凸”一个更有效。

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