20.500.12556/RUL-176104 Numerical investigation of erosion due to particles in a cavitating flow in pelton turbine Erosion of Pelton turbine components due to cavitation and particle-laden flow is a major challenge in hydropower applications, particularly in sediment-rich river environments. This study presents a numerical investigation on how solid particles contribute to the erosion of a Pelton runner. Computational fluid dynamics (CFD) simulations were conducted using ANSYS CFX 2023 R2, incorporating a Lagrangian particle tracking approach and the Finnie abrasion model to predict erosion patterns under varying sediment concentrations. The results indicate that, under normal sediment conditions, particle erosion does not significantly contribute to blade tip damage. However, under extreme sediment loading, the predicted erosion patterns closely match real-world observations, particularly at the blade tip. Erozija komponent Peltonove turbine zaradi kavitacije in toka z delci predstavlja velik izziv pri hidroenergetskih sistemih, zlasti v rekah, bogatih s sedimenti. V tej študiji je predstavljena numerična raziskava vpliva trdnih delcev na erozijo rotorja Peltonove turbine. Simulacije računalniške dinamike tekočin (CFD) so bile izvedene z uporabo programa ANSYS CFX 2023 R2, pri čemer sta bila vključena Lagrangev pristop sledenja delcev in Finniejev model abrazije za napovedovanje erozijskih vzorcev pri različnih koncentracijah sedimentov. Rezultati kažejo, da pri običajnih pogojih sedimentacije erozija zaradi delcev ne prispeva bistveno k poškodbam konic lopatic. Vendar pa pri ekstremni obremenitvi s sedimenti napovedani erozijski vzorci tesno ustrezajo dejanskim opazovanjem, zlasti na konici lopatice. Pelton turbine solid particle erosion cavitation CFD simulation Peltonova turbina erozija zaradi trdnih delcev kavitacija CFD računalniška dinamika tekočin true false true Angleški jezik Slovenski jezik Članek v reviji 2025-11-21 11:28:01 2025-11-21 11:28:08 2025-11-22 04:44:16 0000-00-00 00:00:00 2025 0 0 Str. 284-293 no. 9/10 Vol. 71 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621 2536-3948 10.5545/sv-jme.2025.1351 258138883 RAZ_Kevorkijan_Luka_2025.pdf RAZ_Kevorkijan_Luka_2025.pdf 1 07E256199F1B6FC6AB4981C886853205 57fc2331268b27f4d0c6c4f048cdb277819de29b356ba043c4c222e7d530b2a6 b2026204-c6c4-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=222330 https://www.sv-jme.eu/sl/article/numerical-investigation-of-erosion-due-to-particles-in-a-cavitating-flow-in-pelton-turbine/ 1 6f3950b7-c6c4-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=222329 Fakulteta za strojništvo Strojniški vestnik 0 0 0