TY - GEN
T1 - Multipoint and Multi-objective Optimization of Airfoil Considering Boundary Layer Ingestion
AU - Ma, Rubing
AU - Wu, Jianghao
N1 - Publisher Copyright:
© 2019, Springer Nature Singapore Pte Ltd.
PY - 2019
Y1 - 2019
N2 - Blended-wing-body (BWB) aircraft concept coupled with distributed propulsion is proposed as a potential configuration to meet the N?+?3 goals. In this configuration, the boundary layer ingestion (BLI) effect resulting from the distributed propulsion enhances the aircraft?s aerodynamic performance significantly. The inlet&outlet boundary interacts with the upper airflow strongly, so that the pressure distribution differs from a clean airfoil. However, previous optimization design works mainly aimed at clean airfoil design at cruise conditions. Thus, in this paper, a two-dimensional section of this configuration considering the inlet&outlet boundary conditions of the propulsion system is designed through a multipoint optimization at cruise and climb conditions. We achieve a high lift to drag ratio 2D shape at cruise conditions while improving its climb performance. In addition, we use a weighted-integral method to improve the robustness of the optimal solution and enlarge the drag-divergence Mach number of the solution significantly. Our results may provide qualitative guidance on the future three-dimensional optimization design of the advanced aircraft aerodynamic shape.
AB - Blended-wing-body (BWB) aircraft concept coupled with distributed propulsion is proposed as a potential configuration to meet the N?+?3 goals. In this configuration, the boundary layer ingestion (BLI) effect resulting from the distributed propulsion enhances the aircraft?s aerodynamic performance significantly. The inlet&outlet boundary interacts with the upper airflow strongly, so that the pressure distribution differs from a clean airfoil. However, previous optimization design works mainly aimed at clean airfoil design at cruise conditions. Thus, in this paper, a two-dimensional section of this configuration considering the inlet&outlet boundary conditions of the propulsion system is designed through a multipoint optimization at cruise and climb conditions. We achieve a high lift to drag ratio 2D shape at cruise conditions while improving its climb performance. In addition, we use a weighted-integral method to improve the robustness of the optimal solution and enlarge the drag-divergence Mach number of the solution significantly. Our results may provide qualitative guidance on the future three-dimensional optimization design of the advanced aircraft aerodynamic shape.
KW - Boundary layer ingestion
KW - Multi-objective optimization
KW - Weighted sum method
UR - https://www.scopus.com/pages/publications/85070748953
U2 - 10.1007/978-981-13-3305-7_5
DO - 10.1007/978-981-13-3305-7_5
M3 - 会议稿件
AN - SCOPUS:85070748953
SN - 9789811333040
T3 - Lecture Notes in Electrical Engineering
SP - 61
EP - 73
BT - The Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018
A2 - Zhang, Xinguo
PB - Springer Verlag
T2 - Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018
Y2 - 16 October 2018 through 18 October 2018
ER -