Scholarlink

<p>Bell-mouth shafts equipped with middle piers are widely used in pumped storage power stations in recent years. Predicting the discharge coefficient of bell-mouth shafts with middle piers is of critical importance. This study integrates experimental observations and numerical simulations to investigate the discharge behavior of those bell-mouth shafts. The findings indicate that the discharge coefficient is primarily governed by the relative weir head through the inlets and the contraction ratio of the weir orifice of the inlets. An empirical equation is further proposed to estimate the discharge coefficient with the relative error of less than 10%.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Discharge coefficient of a bell-mouth shaft with middle piers

  • 期刊论文

  • 发表日期：

    2025年10月1日

查看全文
  • Fei Ma,
  • Zi-hang Zhang,
  • Jian-hua Wu

摘要

Bell-mouth shafts equipped with middle piers are widely used in pumped storage power stations in recent years. Predicting the discharge coefficient of bell-mouth shafts with middle piers is of critical importance. This study integrates experimental observations and numerical simulations to investigate the discharge behavior of those bell-mouth shafts. The findings indicate that the discharge coefficient is primarily governed by the relative weir head through the inlets and the contraction ratio of the weir orifice of the inlets. An empirical equation is further proposed to estimate the discharge coefficient with the relative error of less than 10%.