Minimum specific energy in open-channel flows: the Salas–Dominguez contribution
journal contribution
posted on 2023-05-19, 05:47authored byCastro-Orgaz, O, Montes, JS
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.
History
Publication title
Journal of Hydraulic Research
Volume
53
Pagination
151-160
ISSN
0022-1686
Department/School
School of Engineering
Publisher
Int Assn Hydraulic Research
Place of publication
Paseo Bajo Virgen Del Puerto, 3, Madrid, Spain, 28005