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Valve-induced water hammer and column separation in a pipeline apparatusKaradžić, Uroš ; Bulatović, Vladimir, strojnik ; Bergant, AntonČlanek obravnava vodni udar in pretrganje kapljevinskega stebra inducirana z ventilom v preizkusni postaji postavljeni v laboratoriju Univerze Črne gore, Podgorica. Glavni cilj raziskave je bil ... verifikacija in validacija diskretnega plinskega kavitacijskega modela z upoštevanjem nestalnega kapljevinskega trenja za različne pretočne pogoje. Osnove modela so bile postavljene v SV-JME v letu 2005. Model bazira na enčbah neustaljenega kapljevinskega toka v ceveh. Transformacija postavljenih parcialnih diferencialnih enačb hiperboličnega tipa z uporabo metode karakteristik tvori osnovo algoritma za vodni udar. V deltoidno mrežo metode karakteristik je vgrajen kovolucijski model neustaljenega stenskega trenja z uporabo zmogljivih računalniških orodij. Vgradnja plinskih kavitacij v numerična vozlišča da diskretni plinski kavitacijski model. Eksperimentalna postaja je sestavljena iz horizontalnega cevovoda, ki je vgrajen med gorvodni tlačni kotel in dolvodni ventil z iztokom v atmosfero. Dolžina jeklenega cevovoda je 54,23 m, notranji premer je 18 mm, debelina stene cevi 2 mm. Tlačne spremembe zasledujemo s pomočjo štirih hitro odzivnih zaznaval, ki so vgrajeni vzdolž cevovoda. Prehodni pojav je induciran z zapiranjem ali odpiranjem kroglastega zasuna dolvodno, vzdolž cevi in gorvodno. Na ta način lahko raziskujemo prehode v cevovodih različnih dolžin.Source: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 60, no. 11, Nov. 2014, str. 742-754, SI 139)Type of material - article, component partPublish date - 2014Language - englishCOBISS.SI-ID - 13773595
source: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 60, no. 11, Nov. 2014, str. 742-754, SI 139)
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| Database name | Field | Year |
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| Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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| Karadžić, Uroš | ![]() |
| Bulatović, Vladimir, strojnik | ![]() |
| Bergant, Anton | 03923 |
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