The Journal of Hydraulic Research (JHR) publishes research papers in theoretical, experimental and computational hydraulics and fluid mechanics, relating to rivers, lakes, estuaries, coasts, constructed waterways, and some internal flows such as pipe flows. To reflect current trends in water research, articles that explore outcomes of interdisciplinary hydro-environment studies with a strong fluid mechanical component are especially welcome. Although preference is given to fundamental issues, papers focusing on important unconventional or emerging applications of broad interest are also appreciated.

 Overview

This issue begins with a forum article on the history and physical significance of the roughness Froude number, followed by 7 research papers and 3 technical notes that use experimental, numerical and analytical approaches to make important advances in open channels, dense jets, surge waves, seawater, vegetated channels, mixing in storage tanks, erosion, flows past obstacles and turbulent processes at junctions.

IAHR members can access the latest issue online.

 Forum Paper

• History and physical significance of the roughness Froude number

  Tony L. Wahl

  Pages: 173-182 | DOI: 10.1080/00221686.2022.2161958

 Research Paper

• Characteristics of negative and undular surges in an impounded channel

  Feidong Zheng, Pingyi Wang and Yun Li

  Pages: 183-195 | DOI: 10.1080/00221686.2022.2161429

• Effects of bed obstacles on the behaviour of inclined dense jets

  Amin Azadi, Bahar Firoozabadi, Ali Abdollahi Ashnani and Shayan Habibi

  Pages: 196-210 | DOI: 10.1080/00221686.2023.2180442

• Thermohaline equation of state for pure water, seawater and brine

  Raouf E. Baddour

  Pages: 211-219 | DOI: 10.1080/00221686.2023.2180444

• Hydraulic resistance of artificial vegetation patches in aligned and staggered configurations

  Mario Savio, Davide Vettori, Hamish Biggs, Andrea Zampiron, Stuart M. Cameron, Mark Stewart, Chris Soulsby and Vladimir Nikora

  Pages: 220-232 | DOI: 10.1080/00221686.2023.2180445

• Water mixing in rectangular storage tanks: small-scale versus field tests

  Alexandre Da Silva Pinheiro, Laura Sofia Pereira Pinto Monteiro, Maria Do Céu De Sousa Teixeira De Almeida and Dídia Isabel Cameira Covas

  Pages: 233-248 | DOI: 10.1080/00221686.2022.2161960

• Importance of turbulent diffusion in transverse mixing in rivers

  Lauren E. Schwab and Chris R. Rehmann

  Pages: 249-259 | DOI: 10.1080/00221686.2023.2180441

 Technical Note

• Pre-aerated classic hydraulic jump downstream a partly-stepped chute

  Ruidi Bai, Rongcai Tang, Frédéric Murzyn and Hang Wang

  Pages: 260-271 | DOI: 10.1080/00221686.2022.2161961

• Erosion time scale in pipes below dikes for turbulent and laminar flow

  Gijs Hoffmans

  Pages: 272-287 | DOI: 10.1080/00221686.2023.2180443

• Large eddy simulation of flows past an array of square cylinders

  Hongbao Huang, Jianmin Zhang and Jianping Meng

  Pages: 288-297 | DOI: 10.1080/00221686.2022.2161957

 Discussion

• Air demand prediction and air duct design optimization method for spillway tunnel

  Jijian Lian, Xiaoqun Wang and Dongming Liu

  J. Hydraulic Res., 59(3), 2021 | Pages: 448–461 | DOI: 10.1080/00221686.2020.1780499

  Discussed by Gaetano Crispino and Corrado Gisonni

  Pages: 298-299 | DOI: 10.1080/00221686.2022.2161430

 Closure

• Closure to “Air demand prediction and air duct design optimization method for spillway tunnel”

  by Jijian Lang, Xiaoqun Wang and Dongming Liu 

  J. Hydraulic Res. 59(3), 2021 | Pages: 448–461 | DOI: 10.1080/00221686.2020.1780499

  Jijian Lang, Xiaoqun Wang and Dongming Liu

  Pages: 300-301 | DOI: 10.1080/00221686.2022.2161962