Investigation on the Effects of Distance-to-Diameter Ratio of piers on the Hydraulic Characteristics in a 90° Open Channel Bend

• Published in: Journal of Applied Science and Engineering Vol. 29; no. 2; pp. 393 - 400
• Main Authors: Xi Shi, Tingting Song, Hui Chen, Hu Tao, Yuanshun Huo
• Format: Journal Article
• Language: English
• Published: Tamkang University Press 2026
• Subjects: bend circulation; bend flow characteristics; circular end bridge piers; span-to-diameter ratio; turbulent kinetic energy

To investigate the influence of pier spacing on the flow structure in curved channels, a three-dimensional 90° bend model was established. The simulation employed the PISO algorithm coupled with the RNGk − ε turbulence model, along with the Volume of Fluid (VOF) method for free-surface tracking. The...