| 顺载和管径对管内水沸腾两相流流动性的影响 |
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| 引用本文： | 马启成,宋保银,单绍荣.顺载和管径对管内水沸腾两相流流动性的影响[J].北京航空航天大学学报,2011,37(8):943-947. |
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| 作者姓名： | 马启成 宋保银 单绍荣 |
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| 作者单位： | 南京航空航天大学航空宇航学院,南京,210016;南京航空航天大学航空宇航学院,南京,210016;南京航空航天大学航空宇航学院,南京,210016 |
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| 基金项目： | 国家自然科学基金资助项目(50576035); 高等学校博士学科点专项科研基金项目(20040287017) |
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| 摘 要： | 利用地面转台旋转产生的离心力模拟飞行过载,并在此过载作用下进行了不同管径内沸水两相流实验.通过改变过载大小、管径、沸水流量等参数,得到沸水流动特性的初步变化规律,并对顺载作用下沸水的流型进行了拍摄.结果显示顺载和管径对沸水的流动会产生明显的影响.顺载作用使管内出现了一些新流型,并且增加了流动的不稳定性.压差随顺载的增大而减小,且管径越大其减小的程度越大.实验结果增加了动载下管道内工质流动特性的数据积累,同时对飞行器上蒸发循环制冷系统的理论分析和设计提供一定的借鉴和参考.
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| 关 键 词： | 顺载 管径 沸水 实验研究 |
| 收稿时间： | 2010-04-13 |
Effects of driving load and pipe diameter on flow characteristic of two-phase boiling water |
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| Ma Qicheng Song Baoyin Shan Shaorong.Effects of driving load and pipe diameter on flow characteristic of two-phase boiling water[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(8):943-947. |
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| Authors: | Ma Qicheng Song Baoyin Shan Shaorong |
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| Institution: | College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016,China |
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| Abstract: | The centrifugal force resulted from a rotational platform was used to simulate the flying load and the experiment of two-phase boiling water flowing in different diameter pipes under driving load was conducted.By changing the parameters,such as driving load,pipe diameter,flow rate,and so on,some flow characteristics of the boiling water were obtained.The image of flow patterns under dynamic load was obtained with a video camera.The results reveal that the dynamic load whose direction is the same as the flow... |
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| Keywords: | driving load pipe inner diameter boiling water experimental research |
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