Robno-območna integralska metoda za dinamiko tekočin laminarnega in turbulentnega toka : doktorska disertacija

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Robno-območna integralska metoda za dinamiko tekočin laminarnega in turbulentnega toka : doktorska disertacija

Žagar, Ivan, 1962-

Navier-Stokesove enačbe za laminarni transport gibalne količine, toplote in snovi so podane z vrtinčno-hitrostno formulacijo. Podrobno je obravnavana tlačna enačba, ki je izločena iz vezanega sistema ... nelinearnih enačb. Običajna linearna Boussinesquova aproksimacija vzgonskih sil je dopolnjena za nelinearne pojave (anomalija vode) ter razširjena na probleme istočasnega prenosa toplote in snovi. S testnimi primeri je potrjena pravilnost numerične sheme, ki je zasnovna na klasični robno-območni integralski metodi. Težišče dela je na razvoju alternativne formulacije za stacionarno difuzivno-konvektivno oziroma eliptično-hiperbolično enačbo. Z zamenjavo operatorja utežne funkcije (vpeljava osnovne rešitve potujočega skalarnega polja) so zagotovljene rešitve enačbe neodvisno od vrednosti Pecletovega števila. Opis turbulentnih prenosnih pojavov je podan na dva načina: s klasičnim inženirskim pristopom z Reynoldsovimi enačbami časovno povprečnih veličin toka in s pomočjo modela velikih vrtljajev. Za te probleme so podane ustrezne robno-območne integralske enačbe.

Type of material - dissertation ; adult, serious

Publication and manufacture - Maribor : [I. Žagar], 1992

Language - slovenian

COBISS.SI-ID - 13232133

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Year	Impact factor		Edition		Category		Classification
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Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Žagar, Ivan, 1962-	06677
Škerget, Leopold	06428
Alujevič, Andro	02812

Source: Personal bibliographies and: SICRIS

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