摘要
本文通过设计和搭建泄漏探测试验台,对泄漏探测系统性能进行试验研究,并利用FLUENT仿真平台建立泄漏模型进行数值研究,考察不同导流孔直径、绝热层厚度、导流孔个数条件下的各测点温度变化;最后对泄漏探测系统的空气绝热层及导流通道进行了优化设计和数值模拟,结果表明,采用优化设计的T型空气通道的导流结构,能够大幅度地提升探测点处的温度值,对探测系统具有显著的优化效果。
The experiment is conducted to study the performance of leakage detection system, thereafter FLUENT is applied to carry out numerical investigation on the leakage detection system to study the effect of factors that influence the detecting point temperature of different thickness of the air insulation blanket, diversion hole size and number on the performance of detection. Finally the op- timization design and simulation of the air insulation blanket and diversion channels of leak detection system is concluded. Results show that the temperature value can be increased greatly by using the T structure of the diversion hole for the optimization design. The detection system is proved to be opti-mized.
出处
《中国民航飞行学院学报》
2015年第5期32-37,共6页
Journal of Civil Aviation Flight University of China
关键词
泄漏探测
试验
数值模拟
优化设计
Leakage detection
Experiment
Numerical simulation
Optimization design
