This study explores the application of Blade Element Theory (BET) to predict the aerodynamic performance of three-dimensional propellers, addressing the computational challenges associated with traditional methods like moving mesh and Multiple Reference Frame (MRF). By utilizing two-dimensional flow analysis to compute lift and drag coefficients, this approach enables rapid and efficient aerodynamic performance predictions with significant reductions in computational time. Comparative analysis with three-dimensional simulations reveals BET's accuracy, with thrust predictions showing slight overestimation at higher RPMs. Findings highlight BET's potential for preliminary propeller design, particularly for low-solidity, low-speed applications. This method provides an efficient alternative for optimizing propeller performance in electric vertical takeoff and landing (eVTOL) systems, pivotal for advancing Urban Air Mobility (UAM) solutions.

Abstract
1. 서 론
2. 본 론
    2.1 모 델링
    2.2 깃요소이론(BET, Blade Element Theory)
    2.3 2차원 유동해석 기법
    2.4 3차원 유동해석 기법
3. 결과 및 분석
    3.1 RPM에 따른 BET 해석 정밀도
    3.2 Solidity에 따른 영향
4. 결 론
후 기
References

• 유경미(Graduate school, Dep. of Mechanical Engineerng, Wonkwang University) | Gyeongmi YU
• 전수원(Under-Graduate school, Div. of Mechanical Engineerng, Wonkwang University) | Suwon JEON
• 김완진(Dep. of Mechanics-Material Convergence System Engineering, Hanbat National University) | Wanchin KIM
• 이상욱(Div. of Mechanical Engineering, Wonkwang University) | Sang Wook LEE Corresponding author