摘要
介绍自然形状和流线形状两种高空系缆气球的空气动力特性。着重探讨攻角和雷诺数对升力、阻力和俯仰力矩的影响。指出 :合理、良好的气动外形 (具备可靠的稳定性和最小阻力 ) ,对提高抗风能力、增加留空时间都有重要意义。
The report presents aerodynamic properties of the tethered balloons in the natural and streamlined shape at some fixed altitude and puts emphasis on exploration of the effects of angle of attack and Reynolds number on lift, drag and pitching moment of the balloons. A reasonable and excellent aerodynamic configuration with the reliable stability and minimum drag is significant for strengthening the capability against the gust and pro1onging the operation time at such a high altitude.
出处
《上海航天》
2001年第3期22-25,共4页
Aerospace Shanghai
关键词
系缆气球
风沿试验
雷诺数效应
空气动力特性
Tethered balloon
Wind tunnel test
Reynolds number effect
Aerodynamic property
