航空学报 > 1988, Vol. 9 Issue (8): 401-406

发汗冷却弹头内腔流动的简化计算

任芬1, 唐锦荣2   

  1. 力学研究所
  • 收稿日期:1987-04-30 修回日期:1900-01-01 出版日期:1988-08-25 发布日期:1988-08-25

A SIMPLIFIED CALCULATION FOR INTERNAL FLOW OF TRANSPIRATION COOLED NOSETIP

Ren Fen1, Tang Jinrong2   

  1. Institute of Mechanics, Academia Sinica
  • Received:1987-04-30 Revised:1900-01-01 Online:1988-08-25 Published:1988-08-25

摘要: q—热流;Lv—蒸发潜热;ρ—密度;P—压力;T—温度;h—静焓;s—多孔壁表面积;t—时间;ψ—调节系数;(?)—冷却剂流量;m—冷却剂总质量;(?)—渗透率;μ—粘性系数;(?)—弹头头部半径;R—气体常数;H—总焓;M—分子量;z—压缩系数。 下标:ω1—外壁面值;ω2—内壁面值;g—气体值;ι—液体值;γ—辐射值;E—冷却剂蒸发组元值;ex—外流值;in—内流值;la—层流值;tur—湍流值;s—驻点值;c—冷却剂值;air—空气值。

Abstract: Simplified analysis for interior flow of transpiration cooled nosetip is provided and the simplified calculation formulas of internal flow parameter are deduced. The calculation examples for T1, In, Sn, H2O coolants are given. The deduced formulas in this paper are simple and convenient. An engineering calculation method of nosetip thermal protection design is obtained in this paper. It can be used in prediction before the ground simulation experiment.