关键词: 运动阻力, 风洞实验, 涡流

Abstract: By constructing a small wind tunnel，a theoretical model for calculating the wind resistance coefficient is proposed from the perspective of energy conversion after several studies on the wind resistance of several typical shapes.The experinental results are in good agreement with the theoretical deduction after quantitatively verifying the four different shapes of objects.The air resistance theory proposed in this paper can also be applied to the study of liquid.

Key words: air resistance, wind tunnel testing, vortex