| 高空台加温试验进气管网传热过程的计算分析 |
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| 引用本文： | 朱剑鋆,董葳,吴锋,田小江. 高空台加温试验进气管网传热过程的计算分析[J]. 燃气涡轮试验与研究, 2011, 0(4): 10-14,24 |
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| 作者姓名： | 朱剑鋆 董葳 吴锋 田小江 |
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| 作者单位： | 1. 上海交通大学机械与动力工程学院,上海,200240
2. 中国燃气涡轮研究院,四川江油,621703 |
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| 基金项目： | 航空科学基金(20081057004) |
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| 摘 要： | 分析了高空台加温试验时管网内部流动的动态换热特性,建立了管内气体和管壁的联合换热方程,在与试验数据对比的基础上提出了数学模型的修正方法,对试验中管网出口温升过程进行了计算,取得了较好效果。计算结果分析表明:局部热损失在管网散热过程中的比重较大,为缩短试验准备时间,应对混和器出口温度进行分段控制。
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| 关 键 词： | 高空台 瞬态传热 数值模拟 管网 |
Calculation and Analysis of Heat Transfer Process in Pipes of Altitude Test Facility |
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| ZHU Jian-jun,DONG Wei,WU Feng,TIAN Xiao-jiang. Calculation and Analysis of Heat Transfer Process in Pipes of Altitude Test Facility[J]. Gas Turbine Experiment and Research, 2011, 0(4): 10-14,24 |
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| Authors: | ZHU Jian-jun DONG Wei WU Feng TIAN Xiao-jiang |
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| Affiliation: | ZHU Jian-jun1,DONG Wei1,WU Feng2,TIAN Xiao-jiang2(1.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China,2.China Gas Turbine Establishment,Jiangyou 621703,China) |
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| Abstract: | Unsteady heat transfer characteristics in pipes of altitude test facility are analyzed,and equations of heat transfer between hot air and walls are developed.Moreover,correction method of calculation results is offered on the basis of test data comparison.Outlet temperature raising processes at two test conditions are well predicted by using the method.The results show that local heat loss plays a very important role in the process of pipe network's heat losing;the temperature of blender outlet should be co... |
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| Keywords: | altitude test facility unsteady heat transfer numerical simulation pipe network |
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