20.500.12556/RUL-154125 Aerodynamic analysis of mathematically modelled propeller for small UAV using CFD in different temperature conditions Aerodinamična analiza matematično modeliranega propelerja za majhna brezpilotna zračna plovila z uporabo CFD v različnih temperaturnih pogojih Unmanned aerial vehicle (UAV) usage has witnessed a significant rise owing to its cost-effectiveness and versatile applications. However, the design techniques for UAV propellers, encompassing aerodynamic and structural analysis, have received limited attention from researchers. A well-designed propeller can effectively reduce battery consumption and enhance overall efficiency. This study focuses on mathematically designed propellers and compares them with advanced precision composite (APC) Slow Flyer propeller blades in terms of thrust coefficients, power coefficients, and efficiency. The investigation includes the utilization of tetrahedron meshing in simulations, employing the standard k–ω (k–omega) model. To evaluate the accuracy of the blade element theory (BET) in predicting thrust, the simulation data is compared with BET results. Furthermore, the study encompasses experimental testing to validate the simulation findings. The findings demonstrate that the mathematically modelled propeller outperforms the APC Slow Flyer propeller across all ranges of revolutions per minute (rpm). When comparing the results of both methods, BET exhibits an error difference of 10 % in higher rpm ranges, but this error diminishes as the rpm decreases. This study contributes a novel design technique for modelling propellers using mathematical formulas and provides a comprehensive comparison of their aerodynamic properties with existing propellers, utilizing both BET and computational fluid dynamics (CFD) methods, along with experimental validation. unmanned aerial vehicles propellers computational fluid dynamics blade element theory mathematical design brezpilotna zračna plovila propelerji računalniška dinamika tekočin teorija lopatic matematično načrtovanje true false true Angleški jezik Slovenski jezik Članek v reviji 2024-01-26 08:54:09 2024-01-26 08:54:15 2024-01-27 03:58:17 0000-00-00 00:00:00 2023 0 0 Str. 444-454 no. 11/12 Vol. 69 Nov./Dec. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 533:519.62 0039-2480 10.5545/sv-jme.2023.601 182586371 Ganesan,__Jayarajan-Aerodynamic_analysis_of_mathematically_modelled_propeller_for_small_UAV_using_CFD_in_different_temperature_conditions.pdf Ganesan,__Jayarajan-Aerodynamic_analysis_of_mathematically_modelled_propeller_for_small_UAV_using_CFD_in_different_temperature_conditions.pdf 1 F119344C492275B90D6320834933ED09 1e57e54099eec74fbc168c99b1ca99f72c676122de0ecf416d24a4857603c64d 71adcbe1-bc20-11ee-9241-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180316 https://www.sv-jme.eu/sl/article/aerodynamic-analysis-of-mathematically-modelled-propeller-for-small-uav-using-cfd-in-different-temperature-conditions/ 1 1d592ca5-bc20-11ee-9241-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180315 Fakulteta za strojništvo Strojniški vestnik 0 0 0