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Title:
Modeliranje prenosa sedimenta v Ptujskem jezeru : diplomsko delo
Authors:
ID
Bezovnik, Filip
(Author)
ID
Ravnik, Jure
(Mentor)
More about this mentor...
ID
Zadravec, Matej
(Comentor)
Files:
UN_Bezovnik_Filip_2021.pdf
(4,66 MB)
MD5: 154DF72F03AC1E57854FD6D29E45FFDA
PID:
20.500.12556/dkum/64c12646-55b1-495d-95b5-e44bff59edac
Language:
Slovenian
Work type:
Bachelor thesis/paper
Typology:
2.11 - Undergraduate Thesis
Organization:
FS - Faculty of Mechanical Engineering
Abstract:
Človek lahko s posegom v rečno območje vpliva na proces prenosa sedimenta. Kolikšen je ta vpliv lahko izvemo z izdelavo modela prenosa sedimenta. V diplomski nalogi je predstavljena izdelava modela prenosa sedimenta s programom HEC-RAS. Poudarek je dan na enodimenzionalnem modelu z omembo dvodimenzionalnega modela prenosa sedimenta. Izdelan model je umerjen na povprečni rasti 4 lokacij v zadrževalniku voda. Simulacija je bila izvedena s hidravličnimi podatki iz leta 2020. Izdelan model ustrezno napove zvišanje rečnega dna v zadrževalniku voda. Napove, da se v zgornjem delu zadrževalnika voda usedejo vse večje frakcije od 0,064 mm. Del manjših frakcije pa se usede bližje jezu. Model tudi napove večjo sedimentacijo zgornjega dela zadrževalnika voda ob pretokih višjih od 600 m3/s za približno 7,86 ton glede na vstopno količino sedimenta v obravnavano območje. Izdelan model je uporaben za upravljavce Ptujskega jezera, saj z njim lahko ugotovijo intenzivnejša območja usedanja ter določijo način upravljanja, ki povzroči najmanjši dvig rečnega dna.
Keywords:
modeliranje prenosa sedimenta
,
Ptujsko jezero
,
HEC-RAS
,
sedimentacija zadrževalnikov voda
Place of publishing:
Maribor
Place of performance:
Maribor
Publisher:
[F. Bezovnik]
Year of publishing:
2021
Number of pages:
IX, 50 str.
PID:
20.500.12556/DKUM-80454
UDC:
544.77.023.523(043.2)
COBISS.SI-ID:
92463107
Publication date in DKUM:
06.01.2022
Views:
1098
Downloads:
126
Metadata:
Categories:
KTFMB - FS
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:
BEZOVNIK, Filip, 2021,
Modeliranje prenosa sedimenta v Ptujskem jezeru : diplomsko delo
[online]. Bachelor’s thesis. Maribor : F. Bezovnik. [Accessed 7 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=80454
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Licences
License:
CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:
http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:
The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:
14.09.2021
Secondary language
Language:
English
Title:
Sediment transport modelling in lake Ptuj
Abstract:
Human activities can affect river processes. One of these processes is sediment transport. We can quantify our impact using a sediment transport model. In the following pages we present a one-dimensional and a two-dimensional sediment transport model, both made with the HEC-RAS program. Emphasis is put on the one-dimensional sediment transport model. For calibration we use the average increase of riverbed on four different locations. The sediment model was run for a period of one year with flows and stages from 2020. The model accurately predicts elevation of riverbed in the reservoir. In the upper reservoir region, all grains bigger than 0,064 mm settle. Smaller fractions settle closer to the dam or get flushed away. The model also predicts bigger sedimentation with flows higher than 600 m3/s. Our sediment model can be useful for the managers of lake Ptuj. It can serve as a tool for discovering intensive settlement areas and as means of determining a way of managing, least likely to cause riverbed elevation.
Keywords:
sediment transport modeling
,
reservoir sedimentation
,
HEC-RAS
,
river modeling
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