Analysis of the Effect of Leading Edge Damage Caused by FOD on the Aerodynamic Performance of Aircraft Fan Blades

Guenhye Park; Kuisoon Kim; Sangjo Kim; Yuil Kim; Sooin Jeong

doi:10.6108/KSPE.2025.29.5.001

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2025 Vol.29, Issue 5 Next Page

RESEARCH PAPERS

Analysis of the Effect of Leading Edge Damage Caused by FOD on the Aerodynamic Performance of Aircraft Fan Blades 항공용 팬 블레이드에서 FOD로 인한 Leading Edge 손상이 공력 성능에 미치는 영향 분석

31 October 2025. pp. 1-11

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Abstract

This study investigated the changes in aerodynamic performance according to the size of the damaged area on the leading edge of the fan blade of an aircraft turbofan engine under various rotational speed conditions. The analysis was performed numerically using the commercial program Ansys CFX 18.1. The results showed that aerodynamic performance degradation was observed in the damaged blade model due to FOD compared to the baseline model, accompanied by a decrease in mass flow rate, total power ratio, and isentropic efficiency. Furthermore, as the size of the damaged area increased, the total power ratio and efficiency decreased by a certain amount, and the degree of performance degradation varied depending on the rotational speed.

Keywords

Aircraft Engine Fan blade

Foreign Object Damage

Performance Curve

Off-design Performance

본 논문에서는 항공기용 터보팬 엔진의 팬 블레이드 앞전에 FOD로 인한 손상이 발생했을 경우 손상부의 크기에 따른 공력 성능 변화를 여러 회전 속도 조건에서 확인하고자 하였다. 상용 프로그램인 Ansys CFX 18.1을 사용하여 수치적인 방법으로 성능해석을 수행하였다. 연구 결과, 결함이 없는 정상 모델보다 FOD에 의한 블레이드 손상부가 있는 모델에서 질량 유량, 전압력비, 등엔트로피 효율 모두 감소하는 공력 성능 저하가 관찰되었다. 손상부의 크기가 증가할수록 전압력비와 효율이 일정 폭으로 감소하였으며, 회전 속도에 따라 성능 감소 정도의 차이가 발생하였다.

키워드

항공용 팬 블레이드

외부 이물질 손상

성능 곡선

탈설계점 성능

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Information

Publisher :The Korean Society of Propulsion Engineers
Publisher(Ko) :한국추진공학회
Journal Title :Journal of the Korean Society of Propulsion Engineers
Journal Title(Ko) :한국추진공학회지
Volume : 29
No :5
Pages :1-11
Received Date : 2024-12-16
Revised Date : 2025-07-01
Accepted Date : 2025-07-07
DOI :https://doi.org/10.6108/KSPE.2025.29.5.001

Journal of the Korean Society of Propulsion Engineers ISSN:1226-6027(Print) 2288-4548(Online) 한국추진공학회지

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