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利用风洞对六名不同体型的速滑运动员测量空气阻力Fw。根据空气流速中的阻力系数和不同的滑冰姿势研究阻力问题,以空气流速12m/s;滑冰姿势:膝关节为110度角,躯干与冰面平行姿势。空气阻力常数Kn(=Fw/V~2)。测量的人体参数为身高与体重之比。计算公式:0.0205(?)~3/m,标准误2%。实验得出准确的K值,可以推算出其他空气流速、滑行姿势的阻力。可以预测滑行姿势、冰质条件、风速和海拔高度对运动员的影响。
Six wind speed skaters were used to measure air resistance Fw. According to the resistance coefficient of the air velocity and the different skating posture, the resistance problem is studied. The air flow rate is 12m / s. The skating posture is that the knee joint is at a 110 degree angle and the trunk is parallel to the ice surface. Air resistance constant Kn (= Fw / V ~ 2). The measured body parameter is the ratio of height to weight. Calculation formula: 0.0205 (?) ~ 3 / m, the standard error of 2%. Experiments to obtain accurate K value, you can calculate the other air velocity, sliding posture resistance. The effects of gliding posture, ice quality conditions, wind speed and altitude on athletes can be predicted.