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The application of a minimum specific energy concept for a fish ladder design

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU144591" target="_blank" >RIV/00216305:26110/22:PU144591 - isvavai.cz</a>

  • Result on the web

    <a href="https://journals.pan.pl/dlibra/publication/140185/edition/122756/content" target="_blank" >https://journals.pan.pl/dlibra/publication/140185/edition/122756/content</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.24425/ace.2022.140185" target="_blank" >10.24425/ace.2022.140185</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The application of a minimum specific energy concept for a fish ladder design

  • Original language description

    Structural solutions in terms of fish ladders and the use of natural materials to construct them often raise concerns regarding the possibility of using the standard calculation methods. The fish ladder being designed on the Wisłok river consists of three pools, separated from each other by baffles made of rock boulders. The purpose of this study was to analyze water surface profiles for fish ladder at specific values of flow rates. The paper presents the results of hydraulic calculations under the conditions of constant flow rate based on the concept of a minimum specific energy. According to this method, water flow through boulders is critical. Thus, it does not take into account head losses, which are hard to estimate and which are the integral part of typical calculation methods, e.g. the use of equations to determine the flow rate of a weir. An additional advantage of this method is that there is no need to assume the flow pattern of one specific weir. Verification calculations of the water depths were conducted using the HEC–RAS software, under an assumption of an one-dimensional steady water flow. Water depths in the fish ladder, calculated using both methods, were similar, despite the adopted different calculation concepts, and can be used in ichthyologic analyses.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20101 - Civil engineering

Result continuities

  • Project

    <a href="/en/project/TH04020154" target="_blank" >TH04020154: Optimization of the construction, repair and operation of asphalt-concrete linings</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Archives of Civil Engineering

  • ISSN

    1230-2945

  • e-ISSN

    2300-3103

  • Volume of the periodical

    68

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    PL - POLAND

  • Number of pages

    13

  • Pages from-to

    555-568

  • UT code for WoS article

    000778776300032

  • EID of the result in the Scopus database