20.500.12556/DKUM-90554 Modeliranje prenosa sedimenta v akumulacijskem jezeru Melje diplomsko delo Modelling of sediment transport in reservoir melje Nestanovitnost dežja pojasnjuje neenakomerno porazdelitev količine vodnih virov skozi vse leto. Z gradnjo jezov in akumulacijskih jezer želimo izravnati to ne enakomerno porazdelitev vodnih virov in s tem povečati zagotovljenost vode. Akumulacijska jezera se najpogosteje izkoriščajo kot skladišča pitne vode ali shrambo hidroelektrične energije. Takšen jez ne predstavlja ovire le vodi v reki ampak tudi sedimentu, ki ga reka prenaša dol vodno. Sediment se začne kopičiti v rezervoarju in s časom zniža kapaciteto shranjene vode v rezervoarju in s tem škodi glavni vlogi rezervoarja; shranjevanju vode. Sedimentacija je glavni problem vzdrževanja akumulacijskih jezer saj ga je treba redno odstranjevati. Odstranjevanje sedimenta iz akumulacijskega jezera ni enostavno, razmisliti moramo o tem kje ga bomo odstranili, v kolikšni količini (vsega ali le delno) in v kakšnih časovnih razmakih je odstranjevanje najbolj ekonomično. Diplomska naloga se navezuje na sedimentacijo v akumulacijskem jezeru Melje. Z izdelavo hidravličnega modela v programski opremi HEC-RAS ugotavljamo vpliv usedlin na tok v reki Dravi in oblikujemo smernice za odstranjevanja sedimenta v rezervoarju. Simulacije so pokazale, da se na tem območji najbolj splača prečrpavanje sedimenta v kanal. Potrebno bo dodatna študija za potrditev sklepa. The fickleness of rain explains the unequal distribution of water resources throughout the year. By building dams and reservoirs we wish to even out the unequal distribution of water resources and increase water security. Reservoirs are most commonly used as freshwater storage areas for drinking water or hydroelectric energy storage. A dam does not only present an obstacle to the water flow of the river but also to the sediment the river is transporting downstream. Sediment slowly accumulates in the reservoir and over time can significantly lower the storage capacity of the reservoir which hurts the main purpose of a reservoir, water storage. Sedimentation is the main problem in reservoir maintenance because it must be removed regularly. Removing sediment from a reservoir is not simple, we have to think about the specific location where we want to remove the sediment, how much we want to remove (all of it or just partially) and what time interval of removal is the most economical. This thesis relates to sedimentation in the reservoir Melje. With the creation of the hydraulic model in HEC-RAS we interpret the influence of accumulated sediment on the rivers flow and create guidelines for reservoir sediment management. The simulations showed that the best solution in this area is to pump the sediment into the channel feeding the hydroelectric power plant. A second study is recommended to confirm these findings and prove its viability. prenos sedimenta HEC-RAS oblikovanje podatkov 2D modeliranje toka vzdrževanje akumulacijskega jezera sediment transport HEC-RAS data management 2D flow modeling reservoir maintenance true true false [P. Kranjc] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-09-09 09:30:01 2025-04-11 10:40:08 2025-04-18 03:08:27 0000-00-00 00:00:00 2024 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XII, 55 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 627.8.034.7(043.2) 233072899 VS_Kranjc_Primoz_2024.pdf VS_Kranjc_Primoz_2024.pdf 1 9A75AED793DED214D57BF459F476E501 349898780df84384db0d490cab2a6548580895054904089969d99f4e92fbf04a 2c598396-70e5-11ef-93e7-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=185005 Fakulteta za strojništvo 0 0 0