...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dams and reservoirs >Hydraulics of stepped spillways with different numbers of steps
【24h】

Hydraulics of stepped spillways with different numbers of steps

机译：阶梯数不同的阶梯式溢洪道的液压系统

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

This paper describes the study of two physical models that were built to investigate the energy dissipation and flow regimes for different discharges over stepped spillways with different numbers of steps. These physical models had a general slope of 19-2% and had 12 and 23 steps respectively. Experiments were carried out for a wide range of discharges. The hydraulic parameters of the flow over the models were measured and the energy dissipation of flow was also calculated. Results showed that the 12-step model dissipated more energy than the 23-step model. However, the flow regimes that occurred in the 23-step model were considered more acceptable than in the 12-step model. The experiments showed that energy dissipation at lower flow rates were similar in both cases. However, in the skimming flow regime at higher discharges, energy dissipation was about 12% less in the 23-step model than in the 12-step model.
机译：本文介绍了两个物理模型的研究，该模型是为研究阶梯式溢洪道上具有不同步数的不同排放物的能量耗散和流态而建立的。这些物理模型的总坡度为19-2％，分别具有12和23步。对各种放电进行了实验。测量了模型上流动的水力参数，并计算了流动的能量耗散。结果表明，12步模型比23步模型耗散更多的能量。但是，在23步模型中发生的流动状态被认为比在12步模型中更容易接受。实验表明，在两种情况下，较低流速下的能量耗散相似。但是，在较高流量下的撇油流状态下，23步模型的能耗比12步模型的能耗低约12％。

著录项

  • 来源
    《Dams and reservoirs》 |2010年第3期|p.131-136|共6页
  • 作者

    R. Roshan; H. Md.Azamathulla; M. Marosi; H. Sarkardeh; H. Pahlavan; A. Ab Ghani;

  • 作者单位

    Hydraulic Structures Division, Water Research Institute, Tehran, Iran;

    River Engineering and Urban Drainage Research Centre (REDAC), Penang, Malaysia;

    Shahid Chamran University of Ahvaz, Ahvaz, Iran;

    Hydraulic Structures Division, Water Research Institute, Tehran, Iran;

    Shahrood University of Technology, Shahrood, Iran;

    River Engineering and Urban Drainage Research Centre (REDAC), Penang,Malaysia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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