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Dinamika kavitacijskega mehurčka med dvema prostima površinama
ID Nose, Tjaša (Author), ID Dular, Matevž (Mentor) More about this mentor... This link opens in a new window

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Abstract
Kavitacija je proces, pri katerem zaradi spremembe tlaka v tekočini nastanejo kavitacijski mehurčki. Znano je, da lahko s pomočjo kavitacije pospešimo nekatere kemijske procese, vendar fizikalno ozadje le tega še ni popolnoma pojasnjeno. Večjo kemijsko aktivnost povezujemo s prisotnostjo udarnih valov in nastanka mikrocurkov. V raziskovalnem delu mojega diplomskega dela smo z laserskim pulzom generirali kavitacijski mehurček v kiveti napolnjeni z vodo in vstavljenim zračnim mehurčkom. Proces smo opazovali s pomočjo hitre kamere, pri obdelavi rezultatov smo se osredotočili na smer kolapsa in nastanek mikrocurka.

Language:Slovenian
Keywords:kavitacija, kavitacijski mehurček, mikrocurek, prosta površina
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2023
PID:20.500.12556/RUL-151009 This link opens in a new window
COBISS.SI-ID:173405955 This link opens in a new window
Publication date in RUL:27.09.2023
Views:270
Downloads:19
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Secondary language

Language:English
Title:Cavitation bubble dynamics in between two free surfaces
Abstract:
Cavitation is process by which cavitation bubbles form due to a change in pressure in a liquid. It is known that cavitation can accelerate certain chemical processes, but the physical background is not yet fully understood. The increased chemical activity is associated with the presence of micro-jets and the formation of microbubbles. In this research a laser pulse was used to generate a cavitation bubble in a cuvette filled with water and an air bubble inserted. The process was observed using a high-speed camera, and the results were processed by focusing on the direction of collapse and micro-jets formation.

Keywords:cavitation, cavitation bubble, micro-jet, free surface

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