【摘要】 浮空器气囊蒙皮温度的改变,影响气囊与外界对流换热系数。对流换热系数的精确求解难度很大,不易实现。把风速温度作为定性温度来求解对流换热系数时会造成对流换热系数取值精确性低。文中提供一种对流换热系数的极限取值法,用于确定浮空器对流换热系数取值范围,一定程度上提高对流换热系数的精确性。更多还原

【Abstract】 The changes in the surface temperature of aerostat ballonet have an effect on the convective heat transfer coefficient between ballonet and atmospheric environment. Solving exact value of convective heat transfer coefficient is very difficult. The accuracy of convective heat transfer coefficient is very low when the wind temperature is characteristic temperature. This paper provides a method for solving the limit value of convective heat transfer coefficient, and determining the range of convective heat transfer coefficient. This method can improves accuracy of convective heat transfer coefficient.更多还原