Volume 48, Issue 7 e70072
Review Article

Research Progress of Radial-Flow Wave Rotor Technology: A Review

Erlei Gong

Corresponding Author

Erlei Gong

College of Aerospace and Mechanical Engineering, Changzhou Institute of Technology, No.666 Liaohe Road, Changzhou, 213002 China

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, No.29 Yudao Street, Nanjing, 210016 China

E-mail: [email protected]

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Jianzhong Li

Jianzhong Li

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, No.29 Yudao Street, Nanjing, 210016 China

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Zhan Feng

Zhan Feng

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, No.29 Yudao Street, Nanjing, 210016 China

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Tao Zhang

Tao Zhang

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, No.29 Yudao Street, Nanjing, 210016 China

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Jize Liang

Jize Liang

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, No.29 Yudao Street, Nanjing, 210016 China

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First published: 08 July 2025

Abstract

Wave rotor boosting technology offers significant advantages in improving the thermal cycle efficiency of propulsion systems. This article provides a comprehensive review of the recently proposed radial-flow wave rotor technology, focusing on the research progress of radial-flow wave rotor combustors and top-cycle radial-flow wave rotors for ultra-micro gas turbines. The thermal cycle characteristics, structural features, operational principles, and research achievements of these technologies are discussed. The analysis suggests that this technology is still in its developmental phase, characterized by underdeveloped foundational theories and a lack of valuable experimental data and engineering application cases. The summarized technological challenges contribute to guiding the direction of research in radial-flow wave rotor technology.

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