| 改进σ坐标下的三维水流传质数学模型 |
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| 引用本文： | 董壮,龚政,韩青.改进σ坐标下的三维水流传质数学模型[J].水科学进展,2007,18(5):717-723. |
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| 作者姓名： | 董壮 龚政 韩青 |
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| 作者单位： | 1.河海大学水利水电工程学院, 江苏, 南京, 210098; |
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| 摘 要： | 针对σ坐标变换的不足,引入垂向坐标变换系数,通过严密的数学推导,建立了改进的三维水流传质数学模型。给出了改进后的控制方程及相应的边界条件、初始条件。采用有限差分法对模型进行了离散,针对瓯江河口局部海区进行了潮流、盐度过程的验证计算,取得了较好的成果。
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| 关 键 词： | 三维水流 σ坐标 数学模型 FDM |
| 文章编号： | 1001-6791（2007）05-0717-07 |
| 收稿时间： | 2006-04-03 |
| 修稿时间： | 2006-11-21 |
3-D flow and matter transport model for improved σ-coordinate system |
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| DONG Zhuang,GONG Zheng,HAN Qing.3-D flow and matter transport model for improved σ-coordinate system[J].Advances in Water Science,2007,18(5):717-723. |
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| Authors: | DONG Zhuang GONG Zheng HAN Qing |
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| Institution: | 1.College of Water Conservancy and Hydropower Engineering, Hohai university, Nanjing 210098, China;2.Taihu Basin Authority, Shanghai 200434, China |
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| Abstract: | A 3-D flow and matter transport numerical model is budded in the improved σ-coordinate system in this paper.A vertical transform coefficient is used in this work.The govern equations,the boundary conditions and the initialization condidons are obtained through the strict calculation.The rmdel is dispersed by finite difference method (FDM).The computation program is expressed wrath Fortran.The model and its program are confirmed by the test computation of the flow and the salinity process in part sea area of the Oujiang estuary. |
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| Keywords: | FDM |
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