20.500.12556/RUL-171693 Opazovanje procesa zmrzovanja kapljice z uporabo Hele-Shaw celice Visualization of droplet freezing using a Hele-Shaw cell V okviru zaključne naloge smo eksperimentalno preučevali proces zamrzovanja podhlajenih vodnih kapljic z uporabo Hele-Shaw celice, ki zaradi svoje zasnove omogoča jasnejši in kvazi-dvodimenzionalen vpogled v proces zamrzovanja. V raziskavi smo uporabili kapljice različnih volumnov pri različnih podhladitvah in analizirali vpliv teh dveh parametrov na celoten čas zamrzovanja, napredovanja fronte strjevanja po času in na geometrijo konice, ki nastane na vrhu kapljice. Rezultati kažejo, da povečanje volumna kapljice in nižja podhladitev podaljšujeta čas zamrzovanja, medtem ko konsistenten vpliv na obliko konice ni bil zaznan. Within this thesis, we experimentally investigated the freezing process of supercooled water droplets using a Hele-Shaw cell, which, due to its design, provides a clearer and quasi two-dimensional view of the freezing dynamics. Droplets of various volumes were tested under different degrees of supercooling. We analyzed the influence of these parameters on the total freezing time, the motion of the freezing front versus time, and the geometry of the tip formed at the top of the droplet. The results show that increasing the droplet volume and lowering the supercooling temperature prolong the freezing time, while no consistent effect on the tip geometry was observed. zamrzovanje kapljic Hele-Shaw celica podhladitev fronta strjevanja kot konice kapljice droplet freezing Hele-Shaw cell supercooling solidification front tip angle of the droplet true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-08-30 08:30:43 2025-08-30 08:30:45 2025-09-15 03:35:40 0000-00-00 00:00:00 2025 0 0 X, 48 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.56:681.786.3(043.2) 275036 247354883 43336.pdf 43336.pdf 1 C22613198CCE52C299CF76D1C96677CF 6608fd6b3f95bb7f2c41e9ccbb21dde15dd012c9128abb2519552263f5419e65 b856c5f0-856a-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215075 Fakulteta za strojništvo 0 0 0