摘要
在理论分析了气压下降与舱内强制对流换热关系的基础上,利用实验的方法对理论分析进行了验证。结果表明,低气压下,处于连续介质流的流体对流换热仍然可以利用常规情况经验准则关系式进行分析计算;舱内对流换热能力随气压下降不断衰减,气压越低,衰减越快。研究结果对飞行器设备舱热控制有一定的参考作用。
This paper theoretically analyzed the relationship between the air pressure and air forced convection heat transfer in cabin, and proved the relationship through experiment. The results indicate the empirical relations can be used to analyze forced convection heat transfer of continuous flow in lower air pressure. The heat transfer capability of air forced convection decrease with the air pressure in cabin dropping. The results are applicable to air vehicle cabin thermal control .
出处
《热科学与技术》
CAS
CSCD
2008年第4期296-300,共5页
Journal of Thermal Science and Technology
关键词
对流换热
气压下降
连续流
热控制
飞行器
convective heat transfer
pressure dropping
continuous flow
thermal control
air vehicle
作者简介
刘欣(1978-),男,云南昆明人,硕士生,主要从事强化传热及其在高新技术中的应用研究
苑中显(1962-),男,博士,教授,主要研究方向为强化传热理论及其应用、实验热流体技术和CFD与计算传热学.E-mailzxyuan@bjut.edu.cn.