| 流体机械非定常流动的涡方法数值模拟 |
| |
| 引用本文： | 祝宝山,王旭鹤,龟本乔司,曹树良.流体机械非定常流动的涡方法数值模拟[J].水力发电学报,2011,30(5). |
| |
| 作者姓名： | 祝宝山 王旭鹤 龟本乔司 曹树良 |
| |
| 作者单位： | 1. 清华大学水沙科学与水利水电工程国家重点实验室,北京,100084
2. 日本横滨国立大学工学研究院,日本国横滨市240—8501 |
| |
| 基金项目： | 国家自然科学基金资助项目(10872113、50679030) |
| |
| 摘 要： | 本文描述了一种建立在拉格朗日框架下涡方法的具体算法,主要包括：涡量边界条件的给定,涡量输送方程中拉伸项及粘性扩散项的数值处理,以及根据流场中离散涡元的分布计算流场压力的积分方法。利用该方法对有代表性的流体机械非定常流动现象进行了数值模拟,结果表明基于涡方法基础上的数值模拟法是非常适合于数值模拟流体机械非定常流动。
|
| 关 键 词： | 流体机械 涡方法 非定常流动 涡运动 |
Numerical simulation of unsteady flows of fluid machinery using discrete vortex method |
| |
| ZHU Baoshan,WANG Xuhe,KAMEMOTO Kyoji,CAO Shuliang.Numerical simulation of unsteady flows of fluid machinery using discrete vortex method[J].Journal of Hydroelectric Engineering,2011,30(5). |
| |
| Authors: | ZHU Baoshan WANG Xuhe KAMEMOTO Kyoji CAO Shuliang |
| |
| Affiliation: | ZHU Baoshan1,WANG Xuhe1,KAMEMOTO Kyoji2,CAO Shuliang1(1.State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijign 100084,2.Department of Mechanical Engineering and Materials Science,Yokohama National University,Yokohama 240-8501,Japan) |
| |
| Abstract: | This paper presents a new numerical algorithm for vorticity boundary condition,stretching term and viscous diffusion term in the vorticity transport equation and an integral method for pressure calculation using the distributed discrete vortex elements over the flow domain.Case studies are presented to show the attractive features of this method and validate the method in unsteady flow simulations for fluid machinery. |
| |
| Keywords: | fluid machinery vortex methods unsteady flow vortex evolution |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
