Volume 41 Issue 9
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Yue Xiantong, Yuan Huacheng. Inlet design and experimental verification of matching axial supersonic through-flow fan[J]. Journal of Aerospace Power, 2026, 41（9）：20240799 doi: 10.13224/j.cnki.jasp.20240799
Citation: Yue Xiantong, Yuan Huacheng. Inlet design and experimental verification of matching axial supersonic through-flow fan[J]. Journal of Aerospace Power, 2026, 41（9）：20240799 doi: 10.13224/j.cnki.jasp.20240799
shu

Inlet design and experimental verification of matching axial supersonic through-flow fan

doi: 10.13224/j.cnki.jasp.20240799

  • College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China

  • Received Date: 2024-11-24
    Available Online: 2026-06-25
    Abstract

  • Aiming at the axisymmetric inlet designed for an axial supersonic through-flow fan, a design method suitable for this kind of inlet is proposed. This kind of inlet has no expansion section structure, the outlet is the throat, and the whole flow field is supersonic. Firstly, the initial inlet is designed with Ma0=2.5 as the design point, and the influence of typical parameters such as half cone angle on the inlet is explored. The results show that with the increase of half cone angle, the total pressure recovery coefficient σ at the outlet of the inlet increases and the length decreases. After analysis, shortening the inlet length is more effective for improving the σ. The central body surface of the internal pressure section is designed in the form of curved surface to shorten the length of the inlet and the test model is designed for wind tunnel test. The length of the inlet is shortened by about 23.3%. The numerical simulation results show that the σ of the inlet increases at different angles of attack at Ma0=2.5 and 2.0. The curve of pressure ratio along the center of the numerical simulation and the schlieren of the external pressure section are in good agreement with the wind tunnel test, which verifies the correctness of the numerical simulation method and the inlet design method in this paper.

     

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