Steady-state numerical simulations were conducted to capture the aerodynamic characteristics and flow patterns resulting from a tubercled and non-tubercled wing subjected to various combined pitch and yaw conditions a...Steady-state numerical simulations were conducted to capture the aerodynamic characteristics and flow patterns resulting from a tubercled and non-tubercled wing subjected to various combined pitch and yaw conditions at Re=1.8×10^(5).Pitch angle ranged from 0°to 25°,while two different yaw angles of 10°and 30°were used.Results show that 10°yaw angle does not impact upon the lift and drag characteristics significantly,while a 30°yaw angle leads to substantial lift and drag losses.Additionally,the tubercled wing continues to confer favourable stall-mitigating characteristics even for the larger yaw angle.Finally,despite skewing the flow structures significantly,the 30°yaw angle also reduces the formations of bi-periodic flow structures,flow separations and recirculating regions along the leading-edge tubercles,suggesting potentially better flow stability and controllability.展开更多
基金the support for the research project by ETH ZurichNanyang Technological University, Singapore。
文摘Steady-state numerical simulations were conducted to capture the aerodynamic characteristics and flow patterns resulting from a tubercled and non-tubercled wing subjected to various combined pitch and yaw conditions at Re=1.8×10^(5).Pitch angle ranged from 0°to 25°,while two different yaw angles of 10°and 30°were used.Results show that 10°yaw angle does not impact upon the lift and drag characteristics significantly,while a 30°yaw angle leads to substantial lift and drag losses.Additionally,the tubercled wing continues to confer favourable stall-mitigating characteristics even for the larger yaw angle.Finally,despite skewing the flow structures significantly,the 30°yaw angle also reduces the formations of bi-periodic flow structures,flow separations and recirculating regions along the leading-edge tubercles,suggesting potentially better flow stability and controllability.
