| 长江三峡巴东县城区三道沟滑坡成因研究 |
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| 引用本文： | 沈利平,林建忠,傅斌.长江三峡巴东县城区三道沟滑坡成因研究[J].力学学报,1996,28(1):1-7. |
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| 作者姓名： | 沈利平 林建忠 傅斌 |
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| 作者单位： | 浙江大学力学系 |
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| 基金项目： | 国家自然科学基金,浙江大学科学基金 |
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| 摘 要： | 构造了三维混合层流场用离散涡丝描述的计算模型并进行了数值模拟．给出了流场的涡结构以及不同剪切率、不同扰劝强度下涡结构的特征，得到了流场中的平均速度、动量厚度．由计算被动粒子显示了流场螺旋涡结构的图像．做了相应的流动显示实验研究，所得结果与计算结果非常相近．本研究为了解该流场并由此进行流场控制提供了依据．
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| 关 键 词： | 变形 滑坡 主因 诱因 |
| 收稿时间： | 1995-12-25 |
RZSEARCH ON THE THREE-DIMENSIONAL MIXING LAYER DEVELOPING WITH TIME |
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| Shen Liping, Lin Jianzhong, Fu Bin.RZSEARCH ON THE THREE-DIMENSIONAL MIXING LAYER DEVELOPING WITH TIME[J].chinese journal of theoretical and applied mechanics,1996,28(1):1-7. |
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| Authors: | Shen Liping Lin Jianzhong Fu Bin |
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| Institution: | 1. Three Gorges Research Institute of Institute of Investgation &;|Survey, Yichang 443002;
2. Three Gorges Research Institute of Investgation &;|Survey, Danjiangkou 430010 |
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| Abstract: | A model of computation for three-dimensional mixing layers described by discrete vortex filaments is built. Based on this model, the three--dimensional mixing layers are computed numerically. The vortex structure, distribution of mean velocity, momentum thickness and mean square values of velocities at different times are given. The effects of shear rate, intensity of disturbance on flows are analysed. Some computed results are compared with related experimental ones, showing a good agreement. The results given in the paper are helpful to the understanding and control of such flows. |
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| Keywords: | three-dimensional mixing layer discrete vortex filaments numerical simulation visualization |
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