Determination of bed roughness in short sections of the natural Křtinský potok stream by direct measurement of grain size and velocity and with the use of a hydraulic model, and their comparison for the purposes of practical use.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F10%3A00157360" target="_blank" >RIV/62156489:43410/10:00157360 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of bed roughness in short sections of the natural Křtinský potok stream by direct measurement of grain size and velocity and with the use of a hydraulic model, and their comparison for the purposes of practical use.

Popis výsledku v původním jazyce

The target of the study was to compare three distinct methods of bed roughness determination in a small water channel and mainly to compare their applicability in technical practice. Two of the methods (using a current meter and a mathematical model) were based on indirect determination of roughness when measuring and calculating other quantities. The third method (grain size analysis) is the standard one and was principally used for value comparison. The most appropriate method to determine channel bedroughness is analysis of bed material, determination of the representative grain size, and subsequent calculation of the actual roughness. Nevertheless, as mentioned above, the precisely determined value of bed roughness does not necessarily correspondthe reality. However, that determination of roughness represents the main problem in calculation. Determination based on grain size analysis is applicable in most situations.

Název v anglickém jazyce

Determination of bed roughness in short sections of the natural Křtinský potok stream by direct measurement of grain size and velocity and with the use of a hydraulic model, and their comparison for the purposes of practical use.

Popis výsledku anglicky

The target of the study was to compare three distinct methods of bed roughness determination in a small water channel and mainly to compare their applicability in technical practice. Two of the methods (using a current meter and a mathematical model) were based on indirect determination of roughness when measuring and calculating other quantities. The third method (grain size analysis) is the standard one and was principally used for value comparison. The most appropriate method to determine channel bedroughness is analysis of bed material, determination of the representative grain size, and subsequent calculation of the actual roughness. Nevertheless, as mentioned above, the precisely determined value of bed roughness does not necessarily correspondthe reality. However, that determination of roughness represents the main problem in calculation. Determination based on grain size analysis is applicable in most situations.

Druh

D - Stať ve sborníku

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Colloquium of Landscape Management 2010

ISBN

978-80-7375-397-9

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

31-40

Název nakladatele

Mendelova univezita V Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

5. 2. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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