栅格翼是一种较之传统翼具有诸多优点的新型的多面翼,但是栅格翼的主要缺点是阻力大。前期研究表明,栅格翼后掠能有效减小阻力。文中基于此对不同后掠形式的栅格翼进行了数值模拟。结果表明,在超声速阶段前缘后掠削尖模型能更有效的减小阻力;升力方面,在不同的马赫数范围,前缘后掠、前缘后掠削尖及整体后掠基础上的前缘后掠都有较好的升力特性;总体来讲,在文中前缘后掠削尖模型的升阻比最大,表现出最好的气动特性。

Grid fins is a new kind of wing more advantageous than traditional wing, but the drag of grid fins is its main drawback. Early research has shown that the swept grid fins can reduce resistance effectively. In this paper, numerical simulation, was studied based on different swept form of grid fins. The numerical results show that at supersonic speed stage, the model of forward-swept sharping can effectively decrease the resistance. As to the lift, in different Mach range, forward-swept, forward-swept sharping and the whole-swept have good lift characteristics; In general, the forward-swept sharping has the largest lift-to-drag ratio, showing the best aerodynamic characteristics.