| VELOCITY DISTRIBUTION IN TRAPEZOID-SECTION OPEN CHANNEL FLOW WITH A NEW REYNOLDS-STRESS EXPRESSION |
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| 作者姓名： | Ma Zheng
Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai China e-mail:mazh@sina. com |
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| 作者单位： | Ma Zheng
Shanghai Institute of Applied Mathematics and Mechanics，Shanghai University，Shanghai 200072，China，e-mail:mazh8888@sina. com |
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| 基金项目： | Project supported by Shanghai Key Subject Program |
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| 摘 要： | By considering that the coherent structure is the main cause of the Reynolds stress, a new Reynolds stress expression was given. On this basis the velocity distribution in the trapezoid-section open channel flow was worked out with the pseudo-spectral method. The results were compared with experimental data and the influence of the ratio of length to width of the cross-section and the lateral inclination on the velocity distribution was analyzed. This model can be used the large flux in rivers and open channes.
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VELOCITY DISTRIBUTION IN TRAPEZOID-SECTION OPEN CHANNEL FLOW WITH A NEW REYNOLDS-STRESS EXPRESSION |
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| Ma Zheng
Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai ,China,e-mail:mazh@sina. com.VELOCITY DISTRIBUTION IN TRAPEZOID-SECTION OPEN CHANNEL FLOW WITH A NEW REYNOLDS-STRESS EXPRESSION[J].Journal of Hydrodynamics,2003,15(6). |
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| Authors: | Ma Zheng |
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| Abstract: | By considering that the coherent structure is the main cause of the Reynolds stress, a new Reynolds stress expression was given. On this basis the velocity distribution in the trapezoid-section open channel flow was worked out with the pseudo-spectral method. The results were compared with experimental data and the influence of the ratio of length to width of the cross-section and the lateral inclination on the velocity distribution was analyzed. This model can be used the large flux in rivers and open channes. |
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| Keywords: | coherent structure Reynolds stress pseudo-spectral method open channel flow velocity distribution |
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