Double size fulljet field rainfall simulator for complex interrill and rill erosion studies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322530" target="_blank" >RIV/68407700:21110/18:00322530 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.civilengineeringjournal.cz/archive/issues/2018/2018_2/2-2018-0015-(183-194).pdf" target="_blank" >http://www.civilengineeringjournal.cz/archive/issues/2018/2018_2/2-2018-0015-(183-194).pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/CEJ.2018.02.0015" target="_blank" >10.14311/CEJ.2018.02.0015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Double size fulljet field rainfall simulator for complex interrill and rill erosion studies

Popis výsledku v původním jazyce

Field observations and consecutive modelling of soil erosion events proved to be essential for understanding and predicting erosion and sediment transport. An experimental approach often utilizes a large variety of rainfall simulators. In this technical note a complex methodology is introduced, using a mobile rainfall simulator developed at the Czech Technical University in Prague. An experimental setup with two watered plots (16 + 1 m2) was established, which enables simultaneous measurements in two scales and monitoring of surface runoff, flow velocity, infiltration, sediment subsurface flow, vegetation cover effect suspended solids and phosphorus transport, surface roughness and surface evolution under rainfall and other variables. The simulator is built on a trailer transportable by car with folding arm carrying four FullJet WSQ nozzles operating independently. The configuration and water pressure 0.7 bar leads to the total watered area 2.4 x 9.6 m. Average drop size (d50) reaches 1.75 mm for 0.7 bar pressure. Christiansen uniformity index CU reaches 85%. A selection of experimental results highlights both the advantages and the weaknesses of the presented experimental setup.

Název v anglickém jazyce

Double size fulljet field rainfall simulator for complex interrill and rill erosion studies

Popis výsledku anglicky

Field observations and consecutive modelling of soil erosion events proved to be essential for understanding and predicting erosion and sediment transport. An experimental approach often utilizes a large variety of rainfall simulators. In this technical note a complex methodology is introduced, using a mobile rainfall simulator developed at the Czech Technical University in Prague. An experimental setup with two watered plots (16 + 1 m2) was established, which enables simultaneous measurements in two scales and monitoring of surface runoff, flow velocity, infiltration, sediment subsurface flow, vegetation cover effect suspended solids and phosphorus transport, surface roughness and surface evolution under rainfall and other variables. The simulator is built on a trailer transportable by car with folding arm carrying four FullJet WSQ nozzles operating independently. The configuration and water pressure 0.7 bar leads to the total watered area 2.4 x 9.6 m. Average drop size (d50) reaches 1.75 mm for 0.7 bar pressure. Christiansen uniformity index CU reaches 85%. A selection of experimental results highlights both the advantages and the weaknesses of the presented experimental setup.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10501 - Hydrology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

The Civil Engineering Journal

ISSN

1805-2576

e-ISSN

1805-2576

Svazek periodika

2

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

183-194

Kód UT WoS článku

000441099600003

EID výsledku v databázi Scopus

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