Modeliranje tokovnih karakteristik v rotirajočem difuzorju : doktorsko delo

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Modeliranje tokovnih karakteristik v rotirajočem difuzorju : doktorsko delo

Bajcar, Tom

ǂV ǂdoktorski nalogi je predstavljena študija krajevno odvisnih fenomenoloških relacij med tokovnim poljem v vrtečem aksialnem difuzorju okroglega prečnega prereza in integralnimi spremenljivkami ... toka. Osnovo naloge je predstavljala eksperimentalna analiza hitrostnega polja toka in temperaturnega polja površine stene znotraj rotirajočega difuzorja. Meritve hitrostnih komponent toka so potekale s pomočjo sistema LDA, poleg tega je bila izvedena tudi analiza tokovnih struktur v difuzorju s pomočjo računalniško podprte vizualizacije. Ugotovljen je bil močan porast vseh treh komponent hitrosti v ozkem pasu ob vrteči steni difuzorja ter delitev toka na rotirajoči in nerotirajoči del. Meritve temperaturnega polja notranje površine stene difuzorja so bile izvedene z metodo infrardeče termografije. Rezultati teh meritev so pokazali močan vpliv recirkulacijskih območij znotraj difuzorja na prenos toplote med tokom zraka in steno difuzorja. Rezultati eksperimenta so bili uporabljeni za oblikovanje fenomenološkega modela hitrostnega in temperaturnega polja, kjer je bil potrjen signifikanten vpliv vrtilne frekvence difuzorja in Reynoldsovega števila toka na kinematiko ter prenos toplote v difuzorju. Vpliv obeh parametrov je pokazal močno krajevno odvisnost. Ugotovitve študije imajo pomemben doprinos na področju tokovnih karakteristik znotraj rotirajočih votlih teles.

Type of material - dissertation ; adult, serious

Publication and manufacture - Ljubljana : [T. Bajcar], 2005

Language - slovenian

COBISS.SI-ID - 8242203

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Author
Bajcar, Tom

Other authors
Širok, Brane | Trenc, Ferdinand, 1946-

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Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Bajcar, Tom	21237
Širok, Brane	09286
Trenc, Ferdinand, 1946-	01696

Source: Personal bibliographies and: SICRIS

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