diplomska naloga
Davor Rozman (Avtor), Matjaž Četina (Mentor), Primož Banovec (Član komisije za zagovor), Franci Steinman (Član komisije za zagovor), Andrej Širca (Komentor), Anton Bergant (Komentor)

Povzetek

Testiranje programov za račun vodnega udara in uporaba na realnem primeru derivacijske hidroelektrarne

Ključne besede

hidrotehnika;diplomska dela;prehodni pojavi;vodni udar;numerične metode;metoda karakteristik;implicitna metoda;računalniški programi;VODU;VU;WHAMO;derivacijska hidroelektrarna;

Podatki

Jezik: Slovenski jezik
Leto izida:
Izvor: Ljubljana
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: [D. Rozman]
UDK: 627.8(043.2)
COBISS: 5426017 Povezava se bo odprla v novem oknu
Št. ogledov: 2221
Št. prenosov: 749
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Testing programs for the calculation of water hammer and their application in the design of a derivation hydroelectric power plant
Sekundarni povzetek: The purpose of this work is to study hydroelectric transients that occur in hydroelectric power plants and describe the numerical methods which solve basic equations. Then, based on the testing of various computer programs that calculate water hammer effect, we chose the optimal program. With the program a calculation was made for the various closing and opening maneuvers of the turbines in an existing derivation hydroelectric power plant. Investigation showed good matching between results of all three programs VU, VODU and WHAMO for the simulation of water hammer in hydraulic passage systems with shorter closing times. It is much harder to get good results using programs VODU and VU for the simulation of water hammer in hydraulic passage systems with longer closing times. Numerical error caused by rounding results of the calculation leads to major fluctuations. For such simulations the most appropriate program is WHAMO.
Sekundarne ključne besede: graduation thesis;hydrology;transient flow;water hammer;numerical methods;method of characteristics;implicent method;computer program;derivation hydroeletric power plant;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Diplomsko delo
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: XII, 85 str., [8] str. pril.
Vrsta dela (ePrints): thesis
Naslov (ePrints): Testing programs for the calculation of water hammer and their application in the design of a derivation hydroelectric power plant
Ključne besede (ePrints): prehodni pojavi;vodni udar;numerične metode;metoda karakteristik;implicitna metoda;računalniški program;VU;WHAMO;derivacijska hidroelektrarna
Ključne besede (ePrints, sekundarni jezik): transient flow;water hammer;numerical methods;method of characteristics;implicit method;computer program;VODU;VU;WHAMO;derivation hydroelectric power plant.
Povzetek (ePrints): Namen diplomske naloge je spoznati hidravlične prehodne pojave, ki nastopajo v hidroelektrarnah in opisati numerične metode reševanja osnovnih enačb. Nato se na podlagi testiranja različnih programov za račun vodnega udara izbere optimalnega, s katerim se izvede izračun konkretne derivacijske hidroelektrarne za različne manevre zapiranja in odpiranja turbin. Ugotovili smo, da so pri simulacijah pretočnih sistemov s krajšim časom zapiranja za izračun vodnega udara primerni vsi trije programi VU, VODU in WHAMO. Pri simulaciji pretočnega sistema z daljšimi časi zapiranja pa se pri programih VODU in VU pojavijo prevelika nihanja, katerih vzrok je numerična napaka ki nastane pri zaokroževanju rezultatov izračuna. Za takšne simulacije je najprimernejši program WHAMO.
Povzetek (ePrints, sekundarni jezik): The purpose of this work is to study hydroelectric transients that occur in hydroelectric power plants and describe the numerical methods which solve basic equations. Then, based on the testing of various computer programs that calculate water hammer effect, we chose the optimal program. With the program a calculation was made for the various closing and opening maneuvers of the turbines in an existing derivation hydroelectric power plant. Investigation showed good matching between results of all three programs VU, VODU and WHAMO for the simulation of water hammer in hydraulic passage systems with shorter closing times. It is much harder to get good results using programs VODU and VU for the simulation of water hammer in hydraulic passage systems with longer closing times. Numerical error caused by rounding results of the calculation leads to major fluctuations. For such simulations the most appropriate program is WHAMO.
Ključne besede (ePrints, sekundarni jezik): transient flow;water hammer;numerical methods;method of characteristics;implicit method;computer program;VODU;VU;WHAMO;derivation hydroelectric power plant.
ID: 8312153