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Analyses on Aerodynamic Interactions of Quad-Tiltrotor Aircraft with Variable RPM and Diameter

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The Proceedings of the 2021 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2021), Volume 1 (APISAT 2021)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 912))

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Abstract

A CFD method for whole aircraft aerodynamic interactions of the quad-tiltrotor is established, where the momentum source method is adopted for the simulation of the rotor flowfield, and the body-fitted grid method is employed for the simulation of the fuselage. Based upon the established CFD method, the aerodynamic interaction characteristics between the front rotor/rear rotor/wing of the quad-tiltrotor under forward and transition flight state are studied, and the effects of rotor diameter, RPM, and forward flight speed on aerodynamic interaction characteristics of quad-tiltrotor are analyzed. The numerical results show that the use of rotors with large diameter may not be able to meet the performance requirements in high-speed cruise, and the aerodynamic efficiency of the rear rotor is slightly higher. As the diameter and RPM decrease, the differences of aerodynamic efficiency for the front and rear rotors decrease. When the forward speed and the tilt angle of the rotors are small, the efficiency of the rear rotor is lower than that of the front rotor, and the interferences between rotors weaken with increasing rotor diameter and RPM.

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Acknowledgements

This research is supported by the National Natural Science Foundation of China (11872211), the National Key Laboratory Foundation of China (no. 61422200101) and Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

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Authors and Affiliations

  1. National Key Laboratory of Rotorcraft Aeromechanics, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

    Hongliang Wang, Qijun Zhao, Guoqing Zhao, Xiayang Zhang & Jinshuai Shi

Authors
  1. Hongliang Wang
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  2. Qijun Zhao
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  3. Guoqing Zhao
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  4. Xiayang Zhang
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  5. Jinshuai Shi
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Corresponding author

Correspondence to Qijun Zhao .

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Editors and Affiliations

  1. School of Aerospace and Mechanical Engineering, Korea Aerospace University, Gyeonggi-do, Korea (Republic of)

    Sangchul Lee

  2. Department of Mechanical Design and Aeronautical Engineering, Korea National University of Transportation, Chungju, Korea (Republic of)

    Cheolheui Han

  3. Department of Aerospace Engineering, Pusan National University, Busan, Korea (Republic of)

    Jeong-Yeol Choi

  4. Department of Aerospace Engineering, Chungnam National University, Daejeon, Korea (Republic of)

    Seungkeun Kim

  5. Department of Aerospace Engineering, Inha University, Incheon, Korea (Republic of)

    Jeong Ho Kim

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Wang, H., Zhao, Q., Zhao, G., Zhang, X., Shi, J. (2023). Analyses on Aerodynamic Interactions of Quad-Tiltrotor Aircraft with Variable RPM and Diameter. In: Lee, S., Han, C., Choi, JY., Kim, S., Kim, J.H. (eds) The Proceedings of the 2021 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2021), Volume 1. APISAT 2021. Lecture Notes in Electrical Engineering, vol 912. Springer, Singapore. https://doi.org/10.1007/978-981-19-2689-1_41

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  • DOI: https://doi.org/10.1007/978-981-19-2689-1_41

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-19-2688-4

  • Online ISBN: 978-981-19-2689-1

  • eBook Packages: EngineeringEngineering (R0)

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