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Eksperimentalna analiza plinsko fokusiranih mikro-curkov pod vplivom električnega polja : magistrsko delo magistrskega študijskega programa II. stopnje StrojništvoZupan, BorV magistrskem delu smo zasnovali, eksperimentalno ustvarili in ovrednotili tokovno fokusirane mikro-curke pod vplivom električnega polja. Izvedena je bila analiza tokovnih režimov, oblike ... Taylorjevega stožca in povprečne hitrosti curka v odvisnosti od variacije volumskega toka uporabljenih tekočin, okoliškega tlaka in jakosti električnega polja. Curek je sestavljala 50 % volumska zmes vode in etanola, fokusirni plin je bil dušik. Za analizo rezultatov je bila razvita programska oprema v okolju Python, temelječa na računalniškem vidu. Z njo je bilo možno samodejno obdelovati zajete eksperimentalne posnetke. Reynoldsovo število za plin in kapljevino je bilo 0 - 190 in 0,09 - 5,4. Negativna elektroda se je nahajala 400 - 500 µm dolvodno od šobe. Pozitivna elektroda je bila potopljena v dovodni kapilari vzorca in izpostavljena enosmerni napetosti 0 - 7 kV. Mikro-curki so imeli premer 1 - 25 µm, dolžino 50 - 500 µm in povprečno hitrost 0,5 - 10 m/s. Ugotovljeno je bilo, da mikro-curki pod vplivom električnega polja pospešujejo po vsej svoji dolžini. To se razlikuje od pospeševanja s fokusirnim plinom, ki je omejeno na območje v grlu šobe. Ta dodatni pospešek, ki je prvič eksperimentalno ovrednoten, odpira možnost razvoja nove generacije zelo hitrih mikro-curkov za dostavo vzorcev v serijski femtosekundni kristalografiji.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [B. Zupan], 2023Language - slovenianCOBISS.SI-ID - 140966659
Author
Zupan, Bor
Other authors
Šarler, Božidar
Topics
magistrske naloge |
mikro-curek |
tokovno fokusiranje |
električno polje |
elektrohidrodinamika |
eksperiment |
računalniški vid |
master thesis |
micro-jet |
flow focusing |
electric field |
electrohydrodynamics
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Mechanical Engineering, Ljubljana | Ljubljana | FSLJ |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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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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Zupan, Bor | 58252 |
Šarler, Božidar | 04101 |
Source: Personal bibliographies
and: SICRIS
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