摘要
为了研究气凝胶隔热层的隔热效果,首先基于三维热流固耦合分析方法,通过数值计算手段对气凝胶隔热层的隔热性能进行了计算,随后在进口为高温条件下进行了隔热性能试验,获得了隔热层在不同温度、不同燃气流量下的隔热特性规律。采用Matlab软件对内外壁温度之间的关联关系进行了数学公式拟合,并对前期数值计算结果和试验结果进行了对比,证明数值计算的正确性。
This work aims to study the heat insulation effect of aerogel heat insulation layer.Firstlg the thermal insulation characteristics of heat insulation layer was computed by numerical calculation based on the three-dimensional fluid-solid heat coupling analysis method.Then,the heat insulation performance under the high temperature condition of inlet was tested later.After that,the heat insulation characteristics of heat insulation layer at different temperatures and different mass flow were obtained.A mathematical formula was fitted to predict the relationships between temperature of the inner wall and the outside wall based on the experimental results by the Matlab software.The comparison between the simulation results and test results prove the correctness of numerical calculation.
作者
赵亚飞
王旭东
李炎军
娄德仓
余煜玺
Ya-fei Zhao;Xu-dong Wang;Yan-jun Li;De-Cang Lou;Yu-xi Yu(China Gas Turbine Establishment;College of Materials,Xiamen University)
出处
《风机技术》
2022年第4期48-52,共5页
Chinese Journal of Turbomachinery
关键词
气凝胶
隔热性能
热流固耦合
试验验证
公式拟合
Aerogel
Heat-insulation Characteristics
Fluid-solid-heat Coupling
Test Verification
Formula Fitting
