By considering that the coherent structure is the main cause of the Reynoldsstress, a new Reynolds stress expression was given. On this basis the velocity distribution in thetrapczoid-seclion open channel flow was wor...By considering that the coherent structure is the main cause of the Reynoldsstress, a new Reynolds stress expression was given. On this basis the velocity distribution in thetrapczoid-seclion open channel flow was worked out with the pseudo-spectral method. The results werecompared with experimental data and the influence of the ratio of length to width of thecross-section and the lateral inclination on the velocity distribution was analyzed. This model canbe used the large flux in rivers and open channes.展开更多
基金Project supported by Shanghai Key Subject Program
文摘By considering that the coherent structure is the main cause of the Reynoldsstress, a new Reynolds stress expression was given. On this basis the velocity distribution in thetrapczoid-seclion open channel flow was worked out with the pseudo-spectral method. The results werecompared with experimental data and the influence of the ratio of length to width of thecross-section and the lateral inclination on the velocity distribution was analyzed. This model canbe used the large flux in rivers and open channes.
