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本文通过一个展弦比为3的三角形机翼的地面效应试验,测量了地板上的三元紊流附面层。测量结果表明:在地板上确实存在一个畸变的附面层位移面,它与自然增长的地板附面层截然不同。实验测得的附面层位移厚度、动量厚度以及表面摩阻系数与本文所用的理论计算方法所得结果符合较好。
In this paper, a ternary turbulence overlay on the floor is measured by a ground effect test of a triangular wing with an aspect ratio of 3. The measurement results show that there is indeed a distorted surface displacement plane on the floor that is distinct from a naturally occurring floor cladding. The experimentally measured thickness, momentum thickness and surface friction coefficient of the interface layer are in good agreement with the theoretical calculation method used in this paper.