| 低温风洞新形式——换热引射式低温风洞 |
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| 引用本文： | 廖达雄,;刘晓波.低温风洞新形式——换热引射式低温风洞[J].气动实验与测量控制,2009(3):108-112. |
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| 作者姓名： | 廖达雄 ;刘晓波 |
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| 作者单位： | [1]西北工业大学航空学院,西安710072; [2]中国空气动力研究与发展中心,四川绵阳621000 |
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| 摘 要： | 提出了一种新的低温风洞形式-换热引射式低温风洞。这种风洞比连续式低温风洞可以减少投资经费，比引射式低温风洞可以降低运转费用。风洞主要采用了换热器回收大量的风洞排出的低温气体来加热引射气流。经计算分析表明，这种形式风洞的液氮消耗量不仅远低于引射式低温风洞，甚至在很多运行工况低于连续式低温风洞。若能解决参数控制等问题，预计具有良好的应用前景。
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| 关 键 词： | 低温风洞 引射器 换热器 |
A new type of cryogenic tunnel-injection cryogenic tunnel with heat exchanger |
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| Institution: | LIAO Da-xiong ,LIU Xiao-bo (1. School of aerospace, North-west Polytechnical University, Xi＇ an 710072, China; 2. China Aerodynamics Research and Development Center, Mianyang Siehuan 621000, China) |
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| Abstract: | A new type of cryogenic tunnel, i.e. injection cryogenic tunnel with heat exchanger, is presented in this paper. Compared with the continuous cryogenic tunnel and the injection cryogenic tunnel, it can reduce initial fund and save operational cost, respectively. It utilizes a heat exchanger to recollect large amounts of cold exhaust from wind tunnel circuit. The computational analysis has shown that the liquid nitrogen consumption for this type of wind tunnel is far less than that for the injection cryogen tunnel, even less than the continuous cryogenic tunnel in most work conditions. So if its related parameters can be controlled properly, excellent application prospects can be anticipated. |
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| Keywords: | cryogenic wind tunnel ejector heat exchanger |
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