Research Of A New Kind Of Lift Device For Fixed-wing Flying Robot

Flying robot is attracting more and more attention in recent years. Small size and slow velocity makes it shows different aerodymanics from the convetional aircraft. The flying robot is facing different aerodymanic problems, mainly for the lack of lift. The essay focus on the small lift problem the fixed wing flying robot facing, as it is in the low Reynolds condition, and explore new methods of increasing lift. Using the Magnus effect, the lift on the wing will be increased. Breakthrough obtained by raising a new type of airfoils to get more effective when using the Magnus effect compared with the traditional practices using a rotating cylindrical cross-section.A lot of calculations are conveyed to get the mathematical expressions of the new stream function, which are used to calculate the lift in the following chapter. Equivalent diameter is raised to discribe the Magnus effect on the new style airfoil. A variety of simulations are done using the CFD software, Fluent. Through the simulation we get the regular patten of how to develop the airfoil we need. In accordance with the law, a further discussion about the airfoil contour is conducted.A small water tunnel is constructed to test the theory and the CFD simulation result. Experiment results shows that using the Magnus effect to solve the problem of low lift the flying robot facing is a effective method, and have important thearetical significance as well as application prospects.