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针对平流层气球的热动力学仿真问题,提出一个可以计算升空轨迹、速度变化以及气球蒙皮温度分布的综合模型.主要分析了气球基本热力学行为和受力状况,建立气球动力学和运动学方程,以计算升空过程的轨迹和速度变化.通过将气球蒙皮分割成若干面元,研究了蒙皮面元瞬态能量平衡方程,以计算气球蒙皮温度分布.在热力学、动力学和运动学分析的基础上,建立气球综合热动力学仿真模型.引入实测风场数据,计算在实际风场条件下,平流层气球升空和驻留阶段任意时刻的热力学特性.
Aiming at the thermodynamic simulation of the stratospheric balloon, a comprehensive model for calculating the trajectory and velocity of the stratosphere and the distribution of the temperature of the balloon skin is proposed. The basic thermodynamic behavior and force of the balloon are analyzed, and the dynamics of the balloon and kinematics Equation to calculate the trajectory and velocity variation during the process of air-lift.By dividing the balloon skin into a number of elements, the transient energy balance equation of the skin element is studied to calculate the temperature distribution of the air-skin.The thermodynamic, Based on the kinematic analysis, a comprehensive aerodynamic simulation model of the balloon is established, and the measured wind field data are introduced to calculate the thermodynamic properties of the stratospheric balloon at any time during the landing and staying phases under the actual wind field conditions.