| 温度和盐度分层流的数值模拟 |
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| 引用本文： | 胡振红,沈永明,邱大洪,郑永红.温度和盐度分层流的数值模拟[J].水科学进展,2001,12(4):439-444. |
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| 作者姓名： | 胡振红 沈永明 邱大洪 郑永红 |
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| 作者单位： | 1.大连理工大学海岸和近海工程国家重点实验室, 辽宁, 大连, 116024; |
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| 基金项目： | 国家杰出青年科学基金项目(50125924);国家自然科学基金重点项目(59839330) |
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| 摘 要： | 以N-S方程和k-ε湍流模型为基础,针对水温和盐度分层流的流动特性,考虑了浮力对紊动的影响,建立了温度和盐度分层流的k-ε模型,对同时存在温度和盐度梯度的一类密度分层流进行了数值模拟计算,其中紊动平均量控制方程中的紊动项是由k-ε紊流模型计算,给出了速度、温度和盐度的分布。计算结果正确地反映了分层及紊动特征,与实测结果吻合较好。
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| 关 键 词： | 水环境 水温 盐度 分层流 紊流模型 数值模拟 |
| 文章编号： | 1001-6791(2001)04-0439-06 |
| 收稿时间： | 2000-08-09 |
| 修稿时间： | 2000年8月9日 |
Numerical Simulation of Thermal and Saline Stratified Flow |
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| HU Zhen-hong,SHEN Yong-ming,ZHENG Yong-hong,QIU Da-hong.Numerical Simulation of Thermal and Saline Stratified Flow[J].Advances in Water Science,2001,12(4):439-444. |
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| Authors: | HU Zhen-hong SHEN Yong-ming ZHENG Yong-hong QIU Da-hong |
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| Institution: | 1.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;2.Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510070, China |
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| Abstract: | Based on the N-S equation and the universal k-ε turbulent model,taking the character of therma and saline stratified flow and the effects of buoyancy on turbulence into account,the k-ε model of therma and saline stratified flow is established.Density stratified flow with both the vertical temperature gradient and the vertical salinity gradient is simulated numerically,in which turbulent terms are calculated by the k-ε turbulent model.The distributions of velocity,temperature and salinity are given in this paper.The feature of stratification and turbulence is described correctly by the rmdel.The computational results agree well with the experimental data. |
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| Keywords: | aquatic environment water temperature Bali nity stratified flow turbulence model numerical simulation |
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