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.

IAHR members can access the latest issue online.

 Overview

This issue makes fundamental contributions to a range of hydro-environmental engineering problems such as steady and unsteady open channels; stability of hyperconcentrated flows, slurries, and shallow shear flows in the presence of vegetation; water hammer; load rejection in pump-turbine systems; hydraulic roughness in mixed bedrock-alluvial meandering channels; turbulence and waves; and entrainment of density flows. These papers represent an excellent mix of theoretical, numerical, and experimental approaches. 

 Research papers

Hydraulics and rheology of natural hyperconcentrated flows from Draix-Bleone observatory, French Alps
Caroline Le Bouteiller, Guillaume Chambon, Florence Naaim-Bouvet and Nicolle Mathys
Pages: 181-195 | DOI: 10.1080/00221686.2020.1744750

Assessment of numerical methods for estimating the wall shear stress in turbulent Herschel–Bulkley slurries in circular pipes
Dhruv Mehta, Adithya Krishnan Thota Radhakrishnan, Jules B. van Lier and Francois H.L.R. Clemens
Pages: 196-213 | DOI: 10.1080/00221686.2020.1744751
OPEN ACCESS

Propagation of tributary dam-break flows through a channel junction
Hassan Ismail, Lindsey Ann Larocque, Elena Bastianon, M. Hanif Chaudhry and Jasim Imran
Pages: 214-223 | DOI: 10.1080/00221686.2020.1744753

Proper orthogonal decomposition–Galerkin projection method for quasi-two-dimensional laminar hydraulic transient flow
Bonchan Koo, Hyunsoo Kim, Taehyun Jo, Sangwoo Kim and Joon Yong Yoon
Pages: 224-234 | DOI: 10.1080/00221686.2020.1770875

Laminar-turbulent transition of a non-Newtonian fluid flow
Adithya Krishnan Thota Radhakrishnan, Christian Poelma, Jules van Lier and Francois Clemens
Pages: 235-249 | DOI: 10.1080/00221686.2020.1770876
OPEN ACCESS

A numerical modelling of flows in an open channel with emergent vegetation
Jingfang Qu and Jie Yu
Pages: 250-262 | DOI: 10.1080/00221686.2020.1770877

Comprehensive adaptive modelling of 1-D unsteady pipe network hydraulics
Johnathan D. Nault and Bryan W. Karney
Pages: 263-279 | DOI: 10.1080/00221686.2020.1770878

Mechanism of low frequency high amplitude pressure fluctuation in a pump-turbine during the load rejection process
Xiaolong Fu, Zhigang Zuo, Hong Chang, Deyou Li, Hongjie Wang and Xianzhu Wei
Pages: 280-297 | DOI: 10.1080/00221686.2020.1780488

Hydraulic resistance in mixed bedrock-alluvial meandering channels
Roberto Fernández, Alejandro J. Vitale, Gary Parker and Marcelo H. García
Pages: 298-313 | DOI: 10.1080/00221686.2020.1780489

An adoption of the Spalart–Allmaras turbulence model for two- and three-dimensional free surface environmental flows
Adrien Bourgoin, Kamal El Kadi Abderrezzak, Sofiane Benhamadouche and Riadh Ata
Pages: 314-328 | DOI: 10.1080/00221686.2020.1780490

Slope control on ambient fluid entrainment of subaqueous density flows with steady sustained inflows
Heqing Huang, Liyun Tao, Zhao Lu and Yakun Wu
Pages: 329-336 | DOI: 10.1080/00221686.2020.1780495

 Technical notes

A remark on finite volume methods for 2D shallow water equations over irregular bottom topography
Cristiana Di Cristo, Massimo Greco, Michele Iervolino, Riccardo Martino and Andrea Vacca
Pages: 337-344 | DOI: 10.1080/00221686.2020.1744752

Hydraulics of abrupt contraction aerator on stepped chutes
Fei Ma and Jian-Hua Wu
Pages: 345-350 | DOI: 10.1080/00221686.2020.1780500

 Discussion

Comparison between hydrostatic and total pressure simulations of dam-break flows
by Leonardo R. Monteiro, Luísa V. Lucchese and Edith B. C. Schettini, J. Hydraulic Res. 58(5), 725–737
Oscar Castro-Orgaz and Hubert Chanson
Pages: 351-354 | DOI: 10.1080/00221686.2020.1780504

 Closure

Closure To “Comparison Between Hydrostatic And Total Pressure Simulations Of Dam-Break Flows”
by Leonardo R. Monteiro, Luísa V. Lucchese and Edith B. C. Schettini, J. Hydraulic Res., 58(5), 725–737. 
Leonardo R. Monteiro and Edith B. C. Schettini
Pages: 354-354 | DOI: 10.1080/00221686.2020.1780507