| 液晶显示方法研究管内马赫数4拟似冲击波流动 |
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| 引用本文： | 王东屏,兆文忠,杉山弘,東條啓.液晶显示方法研究管内马赫数4拟似冲击波流动[J].空气动力学学报,2005,23(4):521-525. |
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| 作者姓名： | 王东屏 兆文忠 杉山弘 東條啓 |
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| 作者单位： | 大连交通大学机械工程学院,辽宁,大连,116028;日本室兰工业大学机械工程系,日本,室兰,050-8585 |
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| 基金项目： | 致谢：感谢日本室兰工业大学的孙立群博士和硕士研究生武藤洋平的帮助. |
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| 摘 要： | 在一个压力-真空型超声速风洞中, 剪切应力敏感的液晶表面流动显示技术被用来研究方管内马赫数4拟似冲击波的超声速流动.实验是在日本室兰工业大学的超声速风洞中进行.它提供了关于测试表面流动结构的定性信息,诸如湍流边界层分离和再附, 以及边界层流动的维数等.液晶显示结果与纹影实验照片和油膜方法进行比较,证实了它是一种非常有效的表面流动显示工具.
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| 关 键 词： | 拟似冲击波 表面流动显示 剪切-敏感液晶 冲击波/湍流边界层相互作用 湍流边界层分离 |
| 文章编号： | 0258-1825（2005）04-0521-05 |
| 收稿时间： | 2004-06-28 |
| 修稿时间： | 2004-06-282004-12-27 |
Study on Mach 4 internal flow with pseudo-shock waves using liquid crystal visualization method |
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| WANG Dong-ping,ZHAO Wen-zhong,SUGIYAMA Hiromu,TOJO Akira.Study on Mach 4 internal flow with pseudo-shock waves using liquid crystal visualization method[J].Acta Aerodynamica Sinica,2005,23(4):521-525. |
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| Authors: | WANG Dong-ping ZHAO Wen-zhong SUGIYAMA Hiromu TOJO Akira |
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| Institution: | 1 . Department of Mechanical Engineering , Dalian jiaotong university , Dalian 116028, China; 2. Department of Mechanical Systems Engineering , Muroran Institute of Technology , Muroran , Hokkaido 050- 8585, Japan |
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| Abstract: | The shear-sensitive liquid crystal flow visualization technique was used to investigate the Mach 4 pseudoshock wave in a pressure-vacuum supersonic wind tunnel. The experiment was done in the supersonic wind tunnel of Muroran Institute of Technology. It provided information concerning the turbulent boundary layer separation and reattachment locations and the dimensionalities of the flow. The liquid crystal results are compared with schlieren photo and oil film method, confirming that it is an effective flow-visualization tool. |
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| Keywords: | shear-sensitive liquid crystal flow visualization pseudo-shocks waves shock wave/turbulent boundary layer interaction turbulent boundary layer separation |
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