Scholarlink

<p>The present study has been carried out in the test bench on laminar and turbulent regime (TBLTR), Hydraulics Laboratory, University of Carabobo. A galvanized iron pipe (GIP) was incorporated to evaluate piezometric gradient (PG) and the friction factor (FF). The approach was aimed to validate the existing equations to predict PG and FF comparing with experimental values. The flow characteristics corresponding to FF and PG gave values higher than the empirical equations for laminar regime (LR) and lower up to 10 times for the turbulent regime (TR). Under LR, Reynolds number (Re) ranged between 935 and 1880, corresponding with experimental FFs (0.95 to 2.31) and PGs (−&#xa0;0.03 to −&#xa0;0.05). For TR, variables gave Re (21821 to 28056), FFs (0.003 to 0.006), PGs (−&#xa0;0.03 to −&#xa0;0.05). FF and PG results were influenced by the effects of the viscous layer while in the TR by the surface finish of the GIP material. The contribution of this work has been to validate that GIP performance to transport fluids is suggesting different trends to be taken into account in the traditional existing equations to estimate FF and PG.</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

Characterization of Laminar and Turbulent Flow Regime in Galvanized Iron Pipe

  • 期刊论文

  • 发表日期：

    2026年5月11日

查看全文
  • Mairim Hortensia Márquez-Romance,
  • Adriana Mercedes Márquez-Romance,
  • Edilberto Guevara-Pérez

摘要

The present study has been carried out in the test bench on laminar and turbulent regime (TBLTR), Hydraulics Laboratory, University of Carabobo. A galvanized iron pipe (GIP) was incorporated to evaluate piezometric gradient (PG) and the friction factor (FF). The approach was aimed to validate the existing equations to predict PG and FF comparing with experimental values. The flow characteristics corresponding to FF and PG gave values higher than the empirical equations for laminar regime (LR) and lower up to 10 times for the turbulent regime (TR). Under LR, Reynolds number (Re) ranged between 935 and 1880, corresponding with experimental FFs (0.95 to 2.31) and PGs (− 0.03 to − 0.05). For TR, variables gave Re (21821 to 28056), FFs (0.003 to 0.006), PGs (− 0.03 to − 0.05). FF and PG results were influenced by the effects of the viscous layer while in the TR by the surface finish of the GIP material. The contribution of this work has been to validate that GIP performance to transport fluids is suggesting different trends to be taken into account in the traditional existing equations to estimate FF and PG.