Experimental investigation of flow characteristics and performance parameters of a podded aft engine air intake

Authors

  • Human Amiri Sivas University of Science and Technology, Faculty of Aviation and Space Sciences, Department of Aeronautical Engineering, Sivas Merkez, Türkiye
  • Umut Can Küçük Turkish Aerospace Industries, Fethiye District, Havacılık Avenue No:17, 06980 Kahramankazan, Ankara, Türkiye
  • Yiğit Fırat Kuşcu Turkish Aerospace Industries, Fethiye District, Havacılık Avenue No:17, 06980 Kahramankazan, Ankara, Türkiye

DOI:

https://doi.org/10.14311/AP.2023.63.0371

Keywords:

podded air intake, wind tunnel testing, regional jet aircraft, aerodynamic interface plane

Abstract

This experimental study investigates the flow characteristics and performance parameters of a podded intake in aft-engine configuration at the aerodynamic interface plane (AIP), which is a typical configuration of a generic twin-engine regional jet aircraft. A scaled model aircraft with the port side hollow nacelle is equipped with total pressure rakes positioned exactly at the AIP to obtain the total pressure recovery and distortion. Multiple flight configurations (landing, take-off, and climb-out) with varying angle of attack (AoA) and side slip angle (SSA) are considered; attention has been paid to those with undesirable effects to the flow approaching the engine, by deploying flaps, slats, spoilers, and landing gear compartment. The mass flow rate and thus the mach number at the AIP is adjusted by changing the size of the exhaust nozzle. The Reynolds number dissimilarity is partially compensated by transition band application on the fuselage as well as engine inlet.

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Published

2023-12-31

Issue

Vol. 63 No. 6 (2023)

Section

Articles

License

Copyright (c) 2024 Human Amiri, Umut Can Küçük, Yiğit Fırat Kuşcu

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Amiri, H., Küçük, U. C., & Kuşcu, Y. F. (2023). Experimental investigation of flow characteristics and performance parameters of a podded aft engine air intake. Acta Polytechnica, 63(6), 371–382. https://doi.org/10.14311/AP.2023.63.0371
Received 2023-07-10
Accepted 2023-12-04
Published 2023-12-31