An experimental study on investigation of noise and thrust performance for modified propellers

Year 2025, Volume: 9 Issue: 3, 214 - 220

Alper Burgaç

Abstract

This study investigates the aerodynamic and aeroacoustic effects of biomimetic-inspired trailing-edge modifications on propeller performance. A half-hexagon serration model was applied to the trailing edge of a propeller, and a series of experimental tests were conducted to assess its impact on thrust generation and noise characteristics. In this experimental study, thrust tests and noise measurements were conducted on 15 different models at different propeller speeds. The results indicate that while all modified models exhibited lower thrust performance compared to the base model at higher RPM values, some half-modified configurations (M02, M03, M06) demonstrated improved noise reduction capabilities. The M06 model achieved the highest noise reduction, approximately 11.75% at 50% RPM. Fully serrated models, on the other hand, had a limited effect on thrust but did not yield significant noise reduction benefits.

Keywords

Thrust Enhancement, Noise Reduction, Biomimetic Design, Propeller, Passive Flow Control

References

• Wang, J., & Feng, L. (2019). Flow control techniques and applications. Cambridge University Press.
• Joshi, S. N., & Gujarathi, Y. S. (2016). A review on active and passive flow control techniques. International Journal on Recent Technologies in Mechanical and Electrical Engineering, 3(4), 1–6.
• Livya, E., Anitha, G., & Valli, P. (2015). Aerodynamic analysis of dimple effect on aircraft wing. International Journal of Aerospace and Mechanical Engineering, 9(2), 350–353.
• Güler, E., Durhasan, T., Karasu, İ., & Akbıyık, H. (2021). Passive flow control around NACA 0018 airfoil using riblet at low Reynolds number. Journal of the Institute of Science and Technology, 11(3), 2208–2217. https://doi.org/10.21597/jist.897982
• Ji, L., Qiao, W., Tong, F., Xu, K., & Chen, W. (2014). Experimental and numerical study on noise reduction mechanisms of the airfoil with serrated trailing edge. In 20th AIAA/CEAS Aeroacoustics Conference (p. 3297). https://doi.org/10.2514/6.2014-3297
• Avallone, F., Van der Velden, W. C. P., & Ragni, D. (2017). Benefits of curved serrations on broadband trailing-edge noise reduction. Journal of Sound and Vibration, 400, 167–177. https://doi.org/10.1016/j.jsv.2017.04.007
• Sinayoko, S., Azarpeyvand, M., & Lyu, B. (2014). Trailing edge noise prediction for rotating serrated blades. In 20th AIAA/CEAS Aeroacoustics Conference (p. 3296). https://doi.org/10.2514/6.2014-3296
• Ye, X., Zheng, N., Zhang, R., & Li, C. (2022). Effect of serrated trailing-edge blades on aerodynamic noise of an axial fan. Journal of Mechanical Science and Technology, 36(6), 2937–2948. https://doi.org/10.1007/s12206-022-0526-7
• Sun, Y., Liu, W., & Li, T. Y. (2019). Numerical investigation on noise reduction mechanism of serrated trailing edge installed on a pump-jet duct. Ocean Engineering, 191, 106489. https://doi.org/10.1016/j.oceaneng.2019.106489
• Yang, Y., Li, Y., Liu, Y., Arcondoulis, E., Wang, Y., Huang, B., & Li, W. J. (2019). Aeroacoustic and aerodynamic investigation of multicopter rotors with serrated trailing edges. In 25th AIAA/CEAS Aeroacoustics Conference (p. 2523).
• Yang, Y., Wang, Y., Liu, Y., Hu, H., & Li, Z. (2020). Noise reduction and aerodynamics of isolated multi-copter rotors with serrated trailing edges during forward flight. Journal of Sound and Vibration, 489, 115688. https://doi.org/10.1016/j.jsv.2020.115688
• Noda, R., Nakata, T., Ikeda, T., Chen, D., Yoshinaga, Y., Ishibashi, K., … Liu, H. (2018). Development of bio-inspired low-noise propeller for a drone. Journal of Robotics and Mechatronics, 30(3), 337–343. https://doi.org/10.20965/jrm.2018.p0337
• Lee, H. M., Lu, Z., Lim, K. M., Xie, J., & Lee, H. P. (2019). Quieter propeller with serrated trailing edge. Applied Acoustics, 146, 227–236. https://doi.org/10.1016/j.apacoust.2018.11.020
• Chevula, S., Chillamcharal, S., & Maddula, S. P. (2021). A computational design analysis of UAV’s rotor blade in low-temperature conditions for the defence applications. International Journal of Aerospace Engineering, 2021, Article 8843453. https://doi.org/10.1155/2021/8843453
• Wei, Y., Qian, Y., Bian, S., Xu, F., & Kong, D. (2021). Experimental study of the performance of a propeller with trailing-edge serrations. Acoustics Australia, 49(2), 305–316. https://doi.org/10.1007/s40857-021-00221-w
• Chen, J., Xie, J., & Lee, H. M. (2023). Noise attenuation by half flat tip serrated trailing edge in rotating blades. Journal of Physics: Conference Series, 2489(1), 012022. https://doi.org/10.1088/1742-6596/2489/1/012022
• Gu, Y. T., Song, F., Bai, H., Wu, J., Liu, K., Nie, B., & Lu, Z. (2024). Numerical and experimental studies on the owl-inspired propellers with various serrated trailing edges. Applied Acoustics, 220, 109948. https://doi.org/10.1016/j.apacoust.2024.109948
• Lan, T., Li, G., & Zhang, M. (2020). Calculation method of aerodynamic performance of small propeller with serrated trailing edge. Journal of Physics: Conference Series, 1600(1), 012012. https://doi.org/10.1088/1742-6596/1600/1/012012
• Yuliang, W., Yujie, Q., Zhengguo, S., Xianyuan, X., Deyi, K., Junkui, Z., & Huanqin, W. (2025). Experimental investigation of a biomimetic propeller coupled with owl-inspired leading and trailing edges serrations. Physics of Fluids, 37(4), 045150. https://doi.org/10.1063/5.0266266
• Özyurt, D., & Akbıyık, H. (2025). Propeller modification with groove structure on thrust performance. Celal Bayar University Journal of Science, 21(1), 27–34. https://doi.org/10.18466/cbayarfbe.1531094
• Ning, Z., & Hu, H. (2016). An experimental study on the aerodynamics and aeroacoustic characteristics of small propellers. In 54th AIAA Aerospace Sciences Meeting (p. 1785). https://doi.org/10.2514/6.2016-1785
• Butt, F. R., & Talha, T. (2019). Numerical investigation of the effect of leading-edge tubercles on propeller performance. Journal of Aircraft, 56(3), 1014–1028. https://doi.org/10.2514/1.c034845
• Wei, Y., Xu, F., Bian, S., & Kong, D. (2020). Noise reduction of UAV using biomimetic propellers with varied morphologies leading-edge serration. Journal of Bionic Engineering, 17(4), 767–779. https://doi.org/10.1007/s42235-020-0054-z
• Santamaria, J., Bierrenbach-Lima, A., Sanjosé, M., & Moreau, S. (2025). Shape considerations for the design of propellers with trailing edge serrations. Journal of Sound and Vibration, 595, 118771.
• Howe, M. S. (1991). Aerodynamic noise of a serrated trailing edge. Journal of Fluids and Structures, 5(1), 33–45. https://doi.org/10.1016/0889-9746(91)80010-b
• Kósa, P., Kišev, M., Vacho, L., Tóth, L., Olejár, M., Harničárová, M., … Tozan, H. (2022). Experimental measurement of a UAV propeller’s thrust. Tehnički vjesnik, 29(1), 73–80. https://doi.org/10.17559/tv-20201212185220
• Coleman, H. W., & Steele, G. (1995). Engineering application of experimental uncertainty analysis. AIAA Journal, 33(10), 1888–1896. https://doi.org/10.2514/3.12742
• Bahrom, M. Z., Manshoor, B., Zain, B. A. M., Zaman, I., Didane, D. H., Haq, R. H. A., & Ibrahim, M. N. (2023). Thrust force for drone propeller with normal and serrated trailing edge. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 101(1), 160–173. https://doi.org/10.37934/arfmts.101.1.160173
• Gu, Y., Song, F., Bai, H., Wu, J., Liu, K., Nie, B., … Lu, Z. (2024). Numerical and experimental studies on the owl-inspired propellers with various serrated trailing edges. Applied Acoustics, 220, 109948. https://doi.org/10.1016/j.apacoust.2024.109948
• Ning, Z., Wlezien, R. W., & Hu, H. (2017). An experimental study on small UAV propellers with serrated trailing edges. In 47th AIAA Fluid Dynamics Conference (p. 3813). https://doi.org/10.2514/6.2017-3813