Wind Tunnel Test Research on the Flight Style of Ski Jumping

Abstract

In order to reveal the outstanding contribution of the skis to the ski jumping model and to further explore the influence of the edge angle of the skis on the aerodynamic characteristics of the model, the piezometer tube combined with the wind tunnel test was used for research. In the wind tunnel, a six-component balance was used to measure the aerodynamic force of the overall model, and the piezometer tube was used to obtain the aerodynamic force of the skis. The test results show that under the full conditions of the angle of attack α, the forward inclination angle β and the edge angle θ, the contribution rate of the skis to the overall lift characteristics exceeds 70%, while the contribution rate of the mannequin is less than 30%. When other parameters remain unchanged, the lift and drag area of the entire model and the skis decrease with the increase of θ, while the lift and drag area of the mannequin slightly increase with the increase of θ. This shows that the skis play a more important role in the overall lift characteristics of the system, more significant than the mannequin. In addition, the edge angle of the skis also has a certain impact on the aerodynamic characteristics of the entire model, the skis and the mannequin.