| 潮流数值模拟中垂向紊动黏性系数的选取 |
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| 引用本文： | 周 杰,汪德爟,赖锡军.潮流数值模拟中垂向紊动黏性系数的选取[J].河海大学学报(自然科学版),2006,34(4):460-464. |
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| 作者姓名： | 周 杰 汪德爟 赖锡军 |
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| 作者单位： | 1. 河海大学环境科学与工程学院,江苏,南京,210098
2. 中国科学院南京地理与湖泊研究所,江苏,南京,210008 |
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| 摘 要： | 在已有污染物垂向扩散过程研究的基础上,提出了确定潮流数值模拟中垂向紊动黏性系数的垂线平均值的经验方法,并将此方法应用到长江口长兴岛段的潮流三维数值模拟中.计算结果表明,该方法对不同水深、雷诺数适应能力强,计算结果合理,满足工程应用精度的要求.
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| 关 键 词： | 数值模拟 浅水方程 垂向紊动黏性系数 潮流 σ坐标 |
| 文章编号： | 1000-1980（2006）04-0460-05 |
| 收稿时间： | 2004-10-20 |
| 修稿时间： | 2004-10-20 |
Determination of vertical turbulence viscosity coefficient in numerical simulation of tides |
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| ZHOU Jie,WANG De-guan,LAI Xi-jun.Determination of vertical turbulence viscosity coefficient in numerical simulation of tides[J].Journal of Hohai University (Natural Sciences ),2006,34(4):460-464. |
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| Authors: | ZHOU Jie WANG De-guan LAI Xi-jun |
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| Abstract: | Based on previous study of pollutant dispersion in vertical direction, an empirical formula for determining the mean value of turbulence viscosity coefficient in numerical simulation of tides in vertical direction was worked out and applied to 3-D numerical simulation of tides for Changxing Island reach in Yangtze River estuary.The calculated result is reasonable and meets the engineering requirement for precision,and it also shows that the method is versatile for different water depths and Renolds numbers. |
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| Keywords: | numerical simulation shallow water equation vertical turbulence viscosity coefficient tide a coordinate |
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