지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Vol.40 No.9
- 발행연도
- 2023.9
- 수록면
- 751 - 758 (8page)
- DOI
- 10.7736/JKSPE.023.060
이용수
초록· 키워드
오류제보하기
Lately, due to the concentration of population in metropolitan areas, traffic congestion in the hub city has occurred, and future mobility AAM development is undergoing active progress to solve this situation. Accordingly, reducing noise pollution, which is pointed out as one of the problems of AAM, is an essential technical issue for urban operation. In this study, a duct, which is a representative aerodynamic noise reduction method, was used, and numerical analysis was performed using ANSYS FLUENT, a CFD software, according to the shape of struts in the duct. The FW-H of the transient-state LES model was used, and the steady-state analysis value was used as the initial value to save analysis time. Case 1 without strut, Case 2 with strut of an airfoil section, and Case 3 with strut of a rectangle section were designed and compared at a rotational speed of 6,000 RPM. Compared to Case 1, Case 2 and Case 3 showed improved thrust by about 7% and 2%, respectively. Compared to Case 2, Case 3 showed reduced OASPL from a minimum of 0.0793 dB to a maximum of 1.0072 dB. It was found that shapes of strut in the duct significantly affect thrust and aerodynamic noise.
목차
1. 서론
2. 해석 모델 설계 및 가상해석
3. 결과 및 고찰
4. 결론
REFERENCES
참고문헌 (12)
참고문헌 신청
Yung, H. Y., Gmelin, B., Splettstoesser, W., Philippe, J. J., Prieur, J., Brooks, T. F., (1997), Reduction of helicopter blade-vortex interaction noise by active rotor control technology, Progress in Aerospace Sciences, 33(9-10), 647-687.
Kim, D. H., Yi, D. K., Hwang, N. Y., Park, J. H., Ahn, J., (2022), Analysis of aerodynamic performance and noise of propellers according to the presence or absence of duct, Proceedings of the Korean Society for Aeronautical and Space Sciences 2022 Fall Co
Zhao, Y., Tian, Y., Wan, Z., (2022), Aerodynamic characteristics of a ducted fan hovering and transition in ground effect, Aerospace, 9(10), 572.
Ventura Diaz, P., Caracuel Rubio, R., Yoon, S., (2019), Simulations of ducted and coaxial rotors for air taxi operations, Proceedings of the American Institute of Aeronautics and Astronautics Aviation 2019 Forum, 2825.
Jang, C. M., Furukawa, M., Inoue, M., (2001), Noise reduction by controlling tip vortex in a propeller fan, Journal of the Japan Society of Mechanical Engineers International Journal Series B Fluids and Thermal Engineering, 44(4), 748-755.
Kim, D. H., Yi, D. K., Hwang, N. Y., Park, J. H., Ahn, J., (2022), Analysis of aerodynamic performance and noise of propellers according to the presence or absence of duct, Proceedings of the Korean Society for Aeronautical and Space Sciences 2022 Fall Co
Zhao, Y., Tian, Y., Wan, Z., (2022), Aerodynamic characteristics of a ducted fan hovering and transition in ground effect, Aerospace, 9(10), 572.
Ventura Diaz, P., Caracuel Rubio, R., Yoon, S., (2019), Simulations of ducted and coaxial rotors for air taxi operations, Proceedings of the American Institute of Aeronautics and Astronautics Aviation 2019 Forum, 2825.
Jang, C. M., Furukawa, M., Inoue, M., (2001), Noise reduction by controlling tip vortex in a propeller fan, Journal of the Japan Society of Mechanical Engineers International Journal Series B Fluids and Thermal Engineering, 44(4), 748-755.
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