National and University Library, Ljubljana (NUK)
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Modeliranje usedanja prepustnih delcev v trdno-kapljevitih zmeseh : doktorska disertacijaŽajdela, BoštjanaV doktorski disertaciji smo obravnavali gibanje kosmov v suspenziji, ki je delovna zmes na biološki čistilni napravi. Opravili smo analize odpadne vode biološke čistilne naprave Lendava z vzorčenjem. ... V eksperimentalnih raziskavah smo največjo pozornost namenili geometrijskim in sedimentacijskim lastnostim kosmov, ki so ključni parametri pri razvoju numeričnega postopka za simulacijo gibanja kosmov. Predstavili smo, obsežne analize oblike kosmov, velikosti primarnih delcev in kosmov, poroznosti ter prepustnosti kosmov in gostote kosmov. Na osnovi rezultatov eksperimentalnih raziskav smo definirali in izračunali fizikalne parametre kosmov ob upoštevanju njihove poroznosti. Izmed teh sta zraven poroznosti najpomembnejša prepustnost in gostota kosmov, katerih vrednosti za različne velikosti kosmov predstavljajo najpomembnejši del izvedene raziskave. Vsi ti parametri so potrebni za numerično modeliranje, s katerim smo izsledke eksperimentalnega dela prevedli v simulacijo dvofaznega toka tekočine pri usedanju kosmov. Eno fazo je predstavljala voda, ki smo jo opredelili kot zvezno fazo, drugo fazo pa so tvorili kosmi odpadne vode, ki smo, jih opredelili kot dispergirano fazo. Numerično smo, modelirali gibanje kapljevite faze z Eulerjevim načinom numerične obdelave na osnovi NavierStokesovih enačb, medtem smo, za gibanje disperzne faze uporabljali Lagrangeov način numerične obdelave. S primerjavo rezultatov numeričnih simulacij in meritev smo dokazali, da so izpeljani modeli poroznosti, prepustnosti in gostote kosmov pravilni in omogočajo natančno simulacijo gibanja kosmov v biološki čistilni napravi.Type of material - dissertation ; adult, seriousPublication and manufacture - [Maribor : B. Žajdela], 2008Language - slovenianCOBISS.SI-ID - 240161280
Author
Žajdela, Boštjana
Other authors
Hriberšek, Matjaž |
Hribernik, Aleš, 1960-
Topics
Biološke čistilne naprave |
Sedimentacija |
Disertacije |
odpadne vode |
kosmi |
usedanje |
poroznost |
prepustnost |
gostota |
numerično modeliranje
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DRS, in which the journal is indexed
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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Žajdela, Boštjana | 26074 |
Hriberšek, Matjaž | 11167 |
Hribernik, Aleš, 1960- | 05536 |
Source: Personal bibliographies
and: SICRIS
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