Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel
Aim of the study: The paper presents the results of research carried out in the Będkówka stream. The aim of study was to determine the influence of large roughness elements on the change in the coefficient of roughness and resistance coefficients. Material and methods: A section of the stream w...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Publishing House of the University of Agriculture in Krakow
2020-06-01
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| Series: | Acta Scientiarum Polonorum. Formatio Circumiectus |
| Subjects: | |
| Online Access: | http://acta.urk.edu.pl/OKRESLENIE-WPLYWU-ZIAREN-PONADWYMIAROWYCH-NA-WARUNKI-HYDRAULICZNE-PRZEPLYWU-WODY,105353,0,2.html |
| _version_ | 1818743404796837888 |
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| author | Bogusław Michalec Monika Zwolenik |
| author_facet | Bogusław Michalec Monika Zwolenik |
| author_sort | Bogusław Michalec |
| collection | DOAJ |
| description | Aim of the study:
The paper presents the results of research carried out in the Będkówka stream. The aim of study was to determine the influence of large roughness elements on the change in the coefficient of roughness and resistance coefficients.
Material and methods:
A section of the stream was selected for the study, on which nine measurement cross-sections were determined, including three of them were large roughness elements. The dimensionless resistance coefficient (λ) was calculated from the Colebrook-White equation.
Results and conclusions:
It was stated that in sections with large roughness elements, both water flow velocities as well as resistance and roughness coefficients obtained values higher than in other cross-sections. The coefficient of cross-section cover (ω) and degree of change of roughness coefficient Δn were also calculated and a regression relation Δn = f (ω) was determined. This relationship will allow to determine the change in the hydraulic conditions of the water flow, expressed by the change in the coefficient of roughness. |
| first_indexed | 2024-12-18T02:27:53Z |
| format | Article |
| id | doaj.art-1f8228627b6a4b6cb2a36dd862269e97 |
| institution | Directory Open Access Journal |
| issn | 1644-0765 |
| language | English |
| last_indexed | 2024-12-18T02:27:53Z |
| publishDate | 2020-06-01 |
| publisher | Publishing House of the University of Agriculture in Krakow |
| record_format | Article |
| series | Acta Scientiarum Polonorum. Formatio Circumiectus |
| spelling | doaj.art-1f8228627b6a4b6cb2a36dd862269e972022-12-21T21:23:58ZengPublishing House of the University of Agriculture in KrakowActa Scientiarum Polonorum. Formatio Circumiectus1644-07652020-06-011821322https://doi.org/10.15576/ASP.FC/2019.18.2.13Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channelBogusław Michalec0Monika Zwolenik1Uniwersytet Rolniczy w KrakowieStudent I stopnia, kierunek Inzynieria i Gospodarka Wodna, WISiGAim of the study: The paper presents the results of research carried out in the Będkówka stream. The aim of study was to determine the influence of large roughness elements on the change in the coefficient of roughness and resistance coefficients. Material and methods: A section of the stream was selected for the study, on which nine measurement cross-sections were determined, including three of them were large roughness elements. The dimensionless resistance coefficient (λ) was calculated from the Colebrook-White equation. Results and conclusions: It was stated that in sections with large roughness elements, both water flow velocities as well as resistance and roughness coefficients obtained values higher than in other cross-sections. The coefficient of cross-section cover (ω) and degree of change of roughness coefficient Δn were also calculated and a regression relation Δn = f (ω) was determined. This relationship will allow to determine the change in the hydraulic conditions of the water flow, expressed by the change in the coefficient of roughness.http://acta.urk.edu.pl/OKRESLENIE-WPLYWU-ZIAREN-PONADWYMIAROWYCH-NA-WARUNKI-HYDRAULICZNE-PRZEPLYWU-WODY,105353,0,2.htmlroughness coefficientlarge roughness elementsdimensionless resistance coefficient |
| spellingShingle | Bogusław Michalec Monika Zwolenik Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel Acta Scientiarum Polonorum. Formatio Circumiectus roughness coefficient large roughness elements dimensionless resistance coefficient |
| title | Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel |
| title_full | Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel |
| title_fullStr | Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel |
| title_full_unstemmed | Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel |
| title_short | Assesment of influence large roughness elements on hyraulic water flow conditions in Będkówka stream channel |
| title_sort | assesment of influence large roughness elements on hyraulic water flow conditions in bedkowka stream channel |
| topic | roughness coefficient large roughness elements dimensionless resistance coefficient |
| url | http://acta.urk.edu.pl/OKRESLENIE-WPLYWU-ZIAREN-PONADWYMIAROWYCH-NA-WARUNKI-HYDRAULICZNE-PRZEPLYWU-WODY,105353,0,2.html |
| work_keys_str_mv | AT bogusławmichalec assesmentofinfluencelargeroughnesselementsonhyraulicwaterflowconditionsinbedkowkastreamchannel AT monikazwolenik assesmentofinfluencelargeroughnesselementsonhyraulicwaterflowconditionsinbedkowkastreamchannel |