Design of tandem wing layout of pneumatic cooperative lift train

Abstract Pneumatic lift train together is the concept of under background further accelerate speed high-speed running speed, in order to higher whole life cycle cost, researchers put forward aerodynamic together, break through traditional shape design concept, combined with high trains and aircraft their respective advantages, hope that increasing lift, It hoped by train, overall energy saving consumption reduction can be achieved. In this paper, a airfoil optimized improve coefficient as much possible while drag basically unchanged. The thickness are almost unchanged at designed Angle attack, increased 13%. A flat wing based on airfoil, influence wall effect tandem layout studied. better cooperative obtained, which reduce weight single 17%.