| 典型非稳态水跃现象的数值研究 |
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| 引用本文： | 徐金龙,李秀慧.典型非稳态水跃现象的数值研究[J].黑龙江水利科技,2011(3):5-7. |
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| 作者姓名： | 徐金龙 李秀慧 |
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| 作者单位： | 1. 中国水利水电第十一工程局,郑州,450000
2. 河南省豫北水利勘测设计院,河南安阳,455000 |
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| 摘 要： | 采用VOF模型跟踪自由表面的变化,数值模拟了典型水跃湍流由静止到最终稳定的全过程。本文给出了水跃现象在不同时刻自由表面的变化情况,主要对水跃过程中自由表面的形状、内部流场结构、速度矢量场及压力场分布进行了分析。结果表明,VOF模型能够有效地描述水跃这类复杂自由表面流道的湍流特性,具有可行性与实用性。
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| 关 键 词： | 水跃 自由表面流动 非定常 物理及数学模型 数值模拟 |
Numerical Study for Typical Unsteady Hydraulic Jump |
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| XU Jin-long,LI Xiu-hui.Numerical Study for Typical Unsteady Hydraulic Jump[J].Heilongjiang Science and Technology of Water Conservancy,2011(3):5-7. |
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| Authors: | XU Jin-long LI Xiu-hui |
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| Affiliation: | XU Jin-long1,LI Xiu-hui2(1.Chinese Water Conservancy and Hydropower No.11 Engineering Bureau,Zhengzhou 450000,China,2.Henan Province Yubei Water Conservancy Investigation and Design Institute,Anyang 455000,China) |
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| Abstract: | The VOF model(Volume of Fluid) is used to track the changes of free surface and simulate numerically the whole process from stagnation to final steady state of typical hydraulic jump turbulence flow.The study defined the changes of free surface on hydraulic jump at various time,mainly analyzed the shape of free surface,structure of internal flow field,the layout of velocity vector and pressure fields during hydraulic jump.The results show that the VOF model may describe effectively the turbulence characteri... |
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| Keywords: | hydraulic jump free surface flowing unsteady flow physical and numerical model numerical simulation |
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