Hydraulic jump aeration and turbulent dissipation on beds roughened by rigid and flexible vegetation

Published: 13 October 2025| Version 1 | DOI: 10.17632/3z8g6zf95p.1
Contributors:
Hong Hu, Hang Wang, Ruidi BAI, Lian Tang

Description

This dataset supports the paper “Hydraulic jump aeration and turbulent dissipation on beds roughened by rigid and flexible vegetation.” It contains all data used to generate the figures, presented in an Excel spreadsheet. The data comprises laboratory measurements of air-water flow properties (void fraction, bubble count rate, velocity) for hydraulic jumps over three vegetation types (rigid, turf, flexible) across Froude numbers 2.8-5.5. Key findings show that vegetation morphology, more than density, is the dominant control on aeration. Flexible vegetation induced distinct turbulence modulation despite lower flow resistance. The data demonstrates that equivalent roughness height is an insufficient metric, underscoring the need to account for specific flow-vegetation interactions in design.

Files

Institutions

  • Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering

Categories

Hydraulics, Aeration, Turbulence, Vegetation

Funders

  • National Key Research and Development Program of China
    Grant ID: 2022YFC3203902
  • Science Fund for Creative Research Groups of the Natural Science Foundation of Sichuan Province
    Grant ID: 2025NSFTD0017
  • National Natural Science Foundation of China
    China
    Grant ID: U24B20106, 52309100

Licence