ANALYZING PROPELLER PERFORMANCE IN ICING CONDITIONS USING NUMERICAL SIMULATION METHODS

Y. Kim; K. Yee

doi:10.6112/kscfe.2024.29.2.085

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Original Article

ANALYZING PROPELLER PERFORMANCE IN ICING CONDITIONS USING NUMERICAL SIMULATION METHODS 수치해석을 이용한 결빙 조건에서의 프로펠러 성능 분석

30 June 2024. pp. 85-96

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Abstract

This study predicts the icing phenomenon on the propellers of electric propulsion aircraft and analyses the resulting efficiency reduction. Aircraft icing is mainly divided into rime ice and glaze ice, each of which has different icing conditions and morphological characteristics. Rime ice occurs at low temperatures, where droplets freeze immediately on the surface, forming opaque ice, while glaze ice occurs at relatively high temperatures, where droplets freeze as they flow along the surface, forming transparent ice. Due to their high speeds and short chord lengths, propellers are particularly vulnerable to icing. In this study, we compared 2D and 3D icing prediction methods using ICEPAC, an existing icing prediction code, and verified the reliability of the results with experimental data. Furthermore, we analysed the reduction in propeller efficiency based on the predicted changes in icing geometry and evaluated the impact of icing conditions using the Kriging method. The analysis confirmed the vulnerability of the propeller to icing conditions, particularly the effect of increased torque on the propeller due to icing on efficiency. Ultimately, it was determined that in regions with an LWC of 0.2 g/m³ or less, the propeller efficiency was over 25% of its original efficiency, with significant reductions observed in most other areas.

Keywords

Computational Fluid Dynamics

Electric Propulsion Aircraft

Propeller Icing

키워드

전산유체역학

전기 추진 항공기

프로펠러 결빙

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Information

Publisher :Korean Society for Computational Fluids Engineering
Publisher(Ko) :한국전산유체공학회
Journal Title :Journal of Computational Fluids Engineering
Journal Title(Ko) :한국전산유체공학회지
Volume : 29
No :2
Pages :85-96
Received Date : 2024-05-28
Revised Date : 2024-05-30
Accepted Date : 2024-05-31
DOI :https://doi.org/10.6112/kscfe.2024.29.2.085

Journal of Computational Fluids Engineering ISSN:1598-6071(Print) 3022-6252(Online) 한국전산유체공학회지

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