TY - GEN
T1 - Flow Separation Control by Flexible Memetic Coverts
AU - Wang, Longjun
AU - Alam, Md Mahbub
AU - Zhou, Yu
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - This paper presents a systematic experimental investigation on a passive flow control of a NACA 0012 airfoil using memetic coverts which are installed on the suction surface. The objective of the present study is to determine the major role of memetic coverts in the aerodynamic performance of the airfoil at post-stall angles of attack. The memetic coverts width w, thickness δ, and its installation position xin are varied from 0.025c to 0.1c, 0.0002c to 0.0005c, and 0.0 to 0.05c, respectively, where xin is measured from the leading edge of the airfoil, and c is the chord length of the airfoil. In the optimum control case, the maximum lift CL,max, and lift-to-drag ratio CL/CD are enhanced as high as 30.18% (α = 18°) and 309% (α = 14°), respectively, relative to the baseline case. Furthermore, the stall angle was delayed by 6°, i.e., from 12 to 18°. By examining the flow around the airfoil, we discover the physics by which the memetic coverts improve the aerodynamic performance of the airfoil.
AB - This paper presents a systematic experimental investigation on a passive flow control of a NACA 0012 airfoil using memetic coverts which are installed on the suction surface. The objective of the present study is to determine the major role of memetic coverts in the aerodynamic performance of the airfoil at post-stall angles of attack. The memetic coverts width w, thickness δ, and its installation position xin are varied from 0.025c to 0.1c, 0.0002c to 0.0005c, and 0.0 to 0.05c, respectively, where xin is measured from the leading edge of the airfoil, and c is the chord length of the airfoil. In the optimum control case, the maximum lift CL,max, and lift-to-drag ratio CL/CD are enhanced as high as 30.18% (α = 18°) and 309% (α = 14°), respectively, relative to the baseline case. Furthermore, the stall angle was delayed by 6°, i.e., from 12 to 18°. By examining the flow around the airfoil, we discover the physics by which the memetic coverts improve the aerodynamic performance of the airfoil.
KW - Biomimetic
KW - Flexible coverts
KW - Passive control
UR - https://www.scopus.com/pages/publications/85205106188
U2 - 10.1007/978-981-97-6211-8_11
DO - 10.1007/978-981-97-6211-8_11
M3 - 会议稿件
AN - SCOPUS:85205106188
SN - 9789819762101
T3 - Lecture Notes in Mechanical Engineering
SP - 79
EP - 84
BT - Fluid-Structure-Sound Interactions and Control - Proceedings of the 6th Symposium on Fluid-Structure-Sound Interactions and Control FSSIC 2023
A2 - Kim, Daegyoum
A2 - Kim, Kyung Chun
A2 - Zhou, Yu
A2 - Huang, Lixi
PB - Springer Science and Business Media Deutschland GmbH
T2 - 6th Symposium on Fluid-Structure-Sound Interactions and Control, FSSIC 2023
Y2 - 26 August 2023 through 30 August 2023
ER -