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Utilizing a rhombus-shaped guide vane at the pipe bends can mitigate flow separation, thus ensuring a smoother flow. Computational analysis employing the RANS equations with the k-ε turbulence model was conducted to scrutinize fluid dynamics. The study adopted a constant Reynolds number of 6 \(\times\) 104 and utilized the COUPLED algorithm to interconnect fluid pressure and velocity variables. A structured mesh was employed and later served as the working fluid at standard conditions. The study focused on a 90º pipe bend with a diameter of 0.01m, varying Rc/D ratios at 1.5, 1.75, and 2. Computational findings were compared with experimental data from prior studies, indicating that introducing a rhombus-shaped guide vane positively influenced pipe hydraulic efficiency. Superior velocity profile values evidenced this compared to the baseline configuration.

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The Guide Vane Effect with a Rhombus Cross-Section is Implemented on the 90° Pipe Bend as an Effort to Increase the Hydraulic Efficiency of Internal Flow

  • 会议论文

  • 发表日期：

    2025年

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  • James Julian,
  • R. N. Lumbantoruan,
  • Riki Hendra Purba,
  • Fitri Wahyuni,
  • Muhammad Ilham Adhynugraha,
  • Fadilah Hasim

摘要

Utilizing a rhombus-shaped guide vane at the pipe bends can mitigate flow separation, thus ensuring a smoother flow. Computational analysis employing the RANS equations with the k-ε turbulence model was conducted to scrutinize fluid dynamics. The study adopted a constant Reynolds number of 6 \(\times\) 104 and utilized the COUPLED algorithm to interconnect fluid pressure and velocity variables. A structured mesh was employed and later served as the working fluid at standard conditions. The study focused on a 90º pipe bend with a diameter of 0.01m, varying Rc/D ratios at 1.5, 1.75, and 2. Computational findings were compared with experimental data from prior studies, indicating that introducing a rhombus-shaped guide vane positively influenced pipe hydraulic efficiency. Superior velocity profile values evidenced this compared to the baseline configuration.