Calculation and Simulation of Transient Heat Load for Cabins
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摘要: 以我国新一代战斗机的研制为背景,提出了高精度的飞机座舱瞬态热载荷的计算与仿真方法.与传统的计算方法相比,通过联解传导-辐射-对流耦合的控制方程以求出蒙皮温度、座舱各壁面温度,同时考虑了透过舱盖、风挡等透明体的太阳辐射对舱内驾驶员、座椅及仪表盘这类内表面温度和舱内空气温度的影响.通过将座舱内外壁面和舱内空气作为一体联解方程组后,结合某飞行剖面求解了飞机座舱实时瞬态热载荷,并比较了采用本方法与传统方法对计算精度的影响.Abstract: On the base of design for new fighter planes, a method for calculating and simulating transient heat load for cabins has been proposed. The method gets the temperature of every wall of a cabin by calculating equations controlled by coupled heat conduction, convection and radiation.This paper analyzed the effect of the sun radiation on the panel, body, seat and the air in the cabin. Finally, the transient heat load for some fighter plane during a complete flying procedure has been calculated. The results have been compared with ones obtained by old methods.
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Key words:
- heating loads /
- transient performance /
- cabins /
- coupling of heat transmission
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[1] 应文江.座舱瞬态热载荷的计算方法[J]．南京航空航天大学学报,1994,26(3):407~410． [2] 寿荣中,何慧姗．飞行器空气调节[M]．北京:北京航空航天大学出版社,1990． [3] 郭宽良．计算传热学[M]．合肥:中国科学技术大学出版社,1988． [4] 杨世铭．传热学[M]．北京:高等教育出版社,1993. -
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