摘要
在平面热阻模型基础上,考虑多孔介质固、流两相导热系数、孔隙率以及孔隙分布等因素的影响,通过引入倾斜角α,提出了一个预测多孔泡沫介质有效导热系数的数学模型。通过对本文模型的预测结果与国内外有关多孔泡沫介质有效导热系数的实验数据以及其他预测模型的预测结果进行比较,验证了本文所得数学模型的准确性。
Based on resistor mode, an angle a was introduced with taking account of the thermal conductivity of solid-fluid two phases, porosity and the random distribution of pore structure, and a mathematical model for predicting effective thermal conductivity of porous foams has been developed. The predicted values of the model were compared with the experimental date , and the results of other models which predict effective thermal conductivity of porous foams both in domestic and foreign, verified the accuracy of the mathematical model derived in this paper.
出处
《炭素技术》
CAS
北大核心
2013年第1期13-16,共4页
Carbon Techniques
基金
重庆市科技攻关计划资助项目(81826)
“211工程”三期建设项目(S-09101)
关键词
多孔泡沫
有效导热系数
预测模型
Porous foams
effective thermal conductivity
prediction models
