| 楔上再压区的理论分析与实验研究(英文) |
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| 引用本文： | 潘衍强,詹德新.楔上再压区的理论分析与实验研究(英文)[J].五邑大学学报(社会科学版),1990(Z1). |
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| 作者姓名： | 潘衍强 詹德新 |
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| 作者单位： | 武汉水利电力工程学院
(潘衍强)，武汉水利电力工程学院(詹德新) |
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| 摘 要： | 在本文中,对于再压区,在流管微元上建立了连续性方程和动量方程。根据这些方程,确定了流线的位置及速度分布,从而得出了分路流线及再附着点的位置。尤其是沿分路流线解得了涡流扩散系数。在实验中,用双通道探头热线风速计测量了平均速度、湍流度及雷诺应力。实验数据的采样及处理是由Z—80SBC控制的。所得结果与参考文献作了比较,理论结果与实验数据非常符合。
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| 关 键 词： | 楔 再压区 分路流线 流管 涡流扩散系数 热线 雷诺应力 |
Analysis and Experiment of Recompression Region over Wedge |
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| Pan Yanqiang Zhan Doxin.Analysis and Experiment of Recompression Region over Wedge[J].Journal of Wuyi University(Social Sciences Edition),1990(Z1). |
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| Authors: | Pan Yanqiang Zhan Doxin |
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| Institution: | Pan Yanqiang Zhan Doxin |
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| Abstract: | In this paper, to the recompression region, the continuity and momentum equations are established in mini-element of streamtube. According to these equations, the positions of streamline and its velocities are determin ed, then the position of the dividing streamline and the point of reattach-ment are obtained. Especially, the eddy diffusivity is solved along the dividing streamline. In experiments, we have measured the mean velocity profile u ,turbulent intensisy and and Reynolds stress-u'v'
with two-channel probe of hot-wire anemometer. The sampling and treating for experimet data is controlled by Z-80 SBC.The res ult in comparison with reference is given and theoretical results are in good agreement with experiment data.Wuhan University of Water Transportation Engineering |
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| Keywords: | Wedge Recompression region Dividing streamline streamtube Eddy diffusivity Hot wire Reynolds stress |
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