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| 1 | 昆虫拍动翅的非定常变形对其气动力的影响显示文摘通过在动态变形网格上求解N-S方程的方法,研究了昆虫拍动翅的非定常变形对其气动力的影响.其中,拍动翅的扭转变形对气动力影响很小,拱形变形则会产生显著的影响,扭转和拱形组合变形的效果与拱形变形单独的效果基本相同.在6%拱形和20度扭转组合变形的情况下(此为对大量昆虫观察所得到的典型值),相对于无变形平板翅,升力增加了10.20%,升阻比增加了约10%.翅膀的变形可增大最大升力系数;同时,可减小飞行的能耗,例如,对于做悬停飞行的熊蜂,其翅膀的动态变形(6%拱形和20度扭转组合变形)使其飞行中的能耗比无变形情况降低了约16%. | 杜刚 孙茂 | 2008 | 应用数学和力学2008，29，6： | 8 |
| 2 | Power Requirements of Vertical Flight in the Dronefly显示文摘 | Chong Shen Mao Sun | 2015 | Journal of Bionic Engineering2015，12，2： | 5 |
| 3 | Two- and Three-Dimensional Simulations of Beetle Hind Wing Flapping during Free Forward Flight显示文摘 | Tuyen Quang Le Tien Van Truong Hieu Trung Tran Soo Hyung Park Jin Hwan Ko Hoon Cheol Park Kwang Joon Yoon Doyoung Byun | 2013 | Journal of Bionic Engineering2013，10，3： | 2 |
| 4 | Effects of unsteady deformation of flapping wing on its aerodynamic forces显示文摘<正>Effects of unsteady deformation of a flapping model insect wing on its aero- dynamic force production are studied by solving the Navier-Stokes equations on a dynam- ically deforming grid.Aerodynamic forces on the flapping wing are not much affected by considerable twist,but affected by camber deformation.The effect of combined camber and twist deformation is similar to that of camber deformation.With a deformation of 6% camber and 20~ twist (typical values observed for wings of many insects),lift is increased by 10%~20% and lift-to-drag ratio by around 10% compared with the case of a rigid flat-plate wing.As a result,the deformation can increase the maximum lift coefficient of an insect,and reduce its power requirement for flight.For example,for a hovering bumblebee with dynamically deforming wings (6% camber and 20°twist),aerodynamic power required is reduced by about 16% compared with the case of rigid wings. | 杜刚 孙茂 | 2008 | Applied Mathematics and Mechanics(English Edition)2008，29，6： | 1 |
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