Assessment of the thrust force of UAV slotted propellers

Liubov Markovska, Kateryna Balalaieva, Anton Balalaiev

Abstract


The thrust characteristics of slotted propellers of an unmanned aerial vehicle are the subject of the study. The study object is a slotted propeller of an unmanned aerial vehicle. This study aims to increase the thrust of the propeller of an unmanned aerial vehicle by using special slots on the blade surface. The following tasks were solved to achieve the stated goals: development of propeller models with special slots; numerical simulation of the flow past propellers with special slots in the rotation frequency range from 3990 to 6705 rpm in the ground operating mode; analysis of the thrust characteristics of the studied propellers in a given rotation frequency range in the ground operating mode. The study was conducted for propellers with special slots, the width of which was 2 mm and the blade length was 30%.8 models of slotted propellers were developed. A numerical experiment was used to calculate the thrust of the studied propellers. Results: The thrust generation is affected by the presence of a slot on the propeller blade. Notably, not only the presence of a gap but also its location has an effect. In the presence of a gap on the propeller blades in the middle part of the blade, an effect of improving the thrust efficiency is observed for all location options, but not in the entire range of considered propeller rotation frequencies. The results of the conducted study of the thrust efficiency of air slot propellers of unmanned aerial vehicles showed that such a propeller can generate a thrust force up to 21% higher than the basic propeller without gaps with rationally selected gap parameters. A further direction of this study is the analysis of the normal characteristics of a propeller with slots. Scientific novelty and practical significance of the work: the thrust characteristics of air slot propellers for unmanned aerial vehicles were studied for the first time. The obtained results can be used to develop promising propellers with increased thrust efficiency.

Keywords


propeller blade; gap; slotted propeller; thrust; numerical modeling; unmanned aerial vehicle; propeller; efficiency

References


Ucar, U., Bayrak, Z. U., & Tanyeri, B. Optimization of Energy Efficiency According to Freud’s Disk Theory Depending on Propel Pitch Angles. In International Symposium on Unmanned Systems and The Defense Industry, 2021, pp. 121-129. doi: 10.1007/978-3-031-29933-9_14.

Azevedo, D., Reis, J. L., Pinto, R. L. D. F. Solving propeller optimization problems by using helical vortex and exact penalty methods. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2023, vol. 45 (7). 18 p. doi: 10.1007/s40430-023-04258-y.

Torrigiani, F., Dipace, A., & Frediani, A. Variational approach to the problem of the optimal propeller design. Aerotecnica Missili & Spazio, 2016, vol. 95, pp.13-23. doi: 10.1007/BF03404710.

Li, Z., Yang, M., Wang, Z., Wei, W., & Zhou, Z. Airfoil Optimization in Propeller Slipstreams Using Generative Adversarial Networks. In Asia-Pacific International Symposium on Aerospace Technology, 2023, pp. 1412-1424. doi: 10.1007/978-981-97-4010-9_110.

Sun, K., Wang, W., Cheng, R., Liang, Y., Xie, H., Wang, J., & Zhang, M. Evolutionary generative design of supercritical airfoils: an automated approach driven by small data. Complex & Intelligent Systems, 2024, vol. 10(1), pp. 1167-1183. doi: 10.1007/s40747-023-01214-0.

Gupta, P., Tyagi, P., & Singh, R. K. Analysis of generative adversarial networks for data-driven inverse airfoil design. In Proceedings of International Conference on Information Technology and Applications: ICITA, 2021, pp. 251-261. doi: 10.1007/978-981-16-7618-5_22.

Yonekura, K., Miyamoto, N., Suzuki, K. Inverse airfoil design method for generating varieties of smooth airfoils using conditional WGAN-gp. Structural and Multidisciplinary Optimization, 2022, vol. 65(6). 11 p. doi: 10.1007/s00158-022-03253-6.

Guerder, M., Duval, A., Elguedj, T., Feliot, P., & Touzeau, J. Isogeometric shape optimisation of volumetric blades for aircraft engines. Structural and Multidisciplinary Optimization, 2022, vol. 65(3). 18 p. doi: 10.1007/s00158-021-03090-z.

Albanesi, A. E., Dorella, J. J., Storti, B. A., & Volpe, N. J. A simulation-based optimization approach for poultry axial exhaust fans to fulfill aerodynamic and mechanical service constraints. Structural and Multidisciplinary Optimization, 2023, vol. 66(2). 1 p.. DOI: 10.1007/s00158-023-03506-y.

Li, Q., Wang, L., Yang, W., & Zhang, S. Numerical Investigation of Fluid-Structure Interaction Dynamics in Micro-Rotors. In International Conference on Advanced Unmanned Aerial Systems, 2024, pp. 183-192. doi: 10.1007/978-981-96-3240-4_20.

Choayb, H. Proposition of a propeller shape: A numerical study of its performance. Arabian Journal for Science and Engineering, 2024, vol. 49(2), pp. 2119-2142. doi:10.1007/s13369-023-08122-y.

Li, Y., Yonezawa, K., Xu, R., & Liu, H. A biomimetic rotor-configuration design for optimal aerodynamic performance in quadrotor drone. Journal of Bionic Engineering, 2021, vol. 18(4), pp. 824-839. doi: 10.1007/s42235-021-0069-0.

Wei, Y., Xu, F., Bian, S., & Kong, D. Noise reduction of UAV using biomimetic propellers with varied morphologies leading-edge serration. Journal of Bionic Engineering, 2020, vol. 17, pp. 767-779. doi: 10.1007/s42235-020-0054-z.

Nikhade, R. T., & Joshi, G. N. Computational study on aerodynamic characteristics of propeller with protuberances. Aerospace Systems, 2024. doi: 10.1007/s42401-024-00295-0.

Markovska, L. H., Pikul, M. O., Otroshchenko, V. V., Melchenko, A. O., & Balalaieva, K. V. Modeliuvannia techii v odnostupenevomu transzvukovomu kompresori Rotor 67. [Modeling of flow in a single-stage transonic compressor Rotor 67]. Shipbuilding & Marine Infrastructure, 2024, vol. 2 (19), pp. 14–24. (in Ukrainian).




DOI: https://doi.org/10.32620/aktt.2025.4sup2.04