| 无壁面参数低雷诺数桩群阻力计算研究 |
| |
| 引用本文： | 唐勇,杨星.无壁面参数低雷诺数桩群阻力计算研究[J].水道港口,2009,30(3):159-163. |
| |
| 作者姓名： | 唐勇 杨星 |
| |
| 作者单位： | 1. 南京市水建水利建筑工程监理有限公司,南京,210001
2. 河海大学,交通学院,海洋学院,南京,210098 |
| |
| 摘 要： | 桩群阻力的理论研究水平等,对于单桩绕流阻力特性尚未彻底研究清楚,而群桩有着不同于单桩的独特力学特性,其影响因素众多,关系错综复杂,所以寻求桩群阻力简化计算方法成为该领域内的一种主流。借助于循环水槽物理模型试验数据结果建立无壁面参数边界层模型,用于计算低雷诺数桩群绕流阻力,该模型的显著特点是工程实用性强,由于不考虑壁面参数,即简化了计算过程,同时计算结果也令人满意,计算值与实测数据的最大误差低于10%。
|
| 关 键 词： | 桩群阻力 边界层模型 壁面参数 低雷诺数 |
Prediction of flow resistance in low Reynolds number flow over piles with none wall-parameter |
| |
| TANG Yong,YANG Xing.Prediction of flow resistance in low Reynolds number flow over piles with none wall-parameter[J].Journal of Waterway and Harbour,2009,30(3):159-163. |
| |
| Authors: | TANG Yong YANG Xing |
| |
| Institution: | 1.Nanjing Shuijian Water Conservancy Construction Works Supervisory Ltd.;Nanjing 210001;China;2.College of Traffic and Ocean Engineering;Hohai University;Nanjing 210098;China |
| |
| Abstract: | Flow over piers is a complicated fluid mechanics problem of practical importance.Drag force is difficult to compute and the simplified methods to solve drag force have received much attention.With this purpose,a computational model has been developed.This model uses approximate boundary conditions on the piers surface which are imposed in terms of wall shear stress estimated from a none wall-parameter model.A comparison between simulated results and the experimental data was carried out and it indicates tha... |
| |
| Keywords: | drag force of piles wall model wall-parameter low Reynolds number |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
