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Minimum specific energy in open-channel flows: the Salas–Dominguez contribution


Castro-Orgaz, O and Montes, JS, Minimum specific energy in open-channel flows: the Salas-Dominguez contribution, Journal of Hydraulic Research, 53, (2) pp. 151-160. ISSN 0022-1686 (2015) [Refereed Article]

Copyright Statement

© 2015 International Association for Hydro-Environment Engineering and Research

DOI: doi:10.1080/00221686.2014.991356


The specific energy concept is basic for the computation of gradually-varied flows and it is extensively discussed in modern and classical textbooks on the hydraulics of open channels. This concept is typically attributed to Bakhmeteff who developed it in his PhD thesis in Russia in 1912. A much less known fact is that the same concept was independently developed nearly at the same time by Ramón Salas Edwards and Francisco Javier Domínguez Solar. This forum paper highlights their contributions by providing little-known but important information for the history of hydraulics. While Salas Edwards developed the theoretical concept of critical depth simultaneously with Bakhmeteff, the first comprehensive experimental investigation of critical flow was undertaken by Domínguez. His experimental research is described in detail, given that it underpinned the concepts for critical-flow measuring devices.

Item Details

Item Type:Refereed Article
Keywords:gradually-varied flow, open channel flow, specific energy, water surface profiles
Research Division:Engineering
Research Group:Civil engineering
Research Field:Water resources engineering
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Montes, JS (Dr Jose Montes)
ID Code:117297
Year Published:2015
Web of Science® Times Cited:2
Deposited By:Engineering
Deposited On:2017-06-07
Last Modified:2017-09-22

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