| 三棱柱型人工鱼礁绕流流场的CFD分析 |
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| 引用本文： | 黄远东,龙 催,邓济通.三棱柱型人工鱼礁绕流流场的CFD分析[J].水资源与水工程学报,2013,24(1):1-4. |
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| 作者姓名： | 黄远东 龙 催 邓济通 |
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| 作者单位： | 上海理工大学 环境与建筑学院,上海,200093 |
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| 基金项目： | 上海市教委重点学科建设项目(J50502);上海市研究生创新基金项目(JWCXSL1102) |
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| 摘 要： | 基于CFD软件平台ANSYS FLUENT,模拟得到了5种不同来流速度(0.1、0.2、0.4、0.6和0.8 m/s)下三棱柱型人工鱼礁(各边长均为3 m)周围的三维水流场。通过速度场模拟结果分析,得到了上升流最大速度点位置、上升流最大高度、上升流最大速度、上升流平均速度以及背涡区尺度等参数;分析了礁体周围的压力分布和背涡区的涡旋结构特征。此外,还初步揭示出三棱柱型人工鱼礁绕流与方型人工鱼礁绕流在流场效应上的异同点。
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| 关 键 词： | 三棱柱型人工鱼礁 剧烈分离 水流场 上升流 背涡区 数值仿真 |
| 收稿时间： | 2012/9/26 0:00:00 |
| 修稿时间： | 2012/10/11 0:00:00 |
Analysis of water flow field based on CFD at a three-prism artificial reef |
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| HUANG Yuandong,LONG Cui and DENG Jitong.Analysis of water flow field based on CFD at a three-prism artificial reef[J].Journal of water resources and water engineering,2013,24(1):1-4. |
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| Authors: | HUANG Yuandong LONG Cui and DENG Jitong |
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| Affiliation: | (School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China) |
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| Abstract: | Three-dimensional water flow fields past a three-prism artificial reef with three meters long of each side are numerically simulated by using the commercial CFD software (ANSYS FLUENT) under the five different incoming velocities (0.1,0.2,0.4,0.6and 0.8meter per second respectively).The position of the maximum velocity of the upwelling current, the maximum upwelling height, the maximum and average velocities of the upwelling current as well as the size of the wake vortex region are all obtained through analyzing the numerical results of the velocity fields, and the wake vortex structures and pressure distributions are analyzed. Moreover, the flow discrepancies are revealed when the flow passes between a rectangular artificial reef and a three-prism artificial reef. |
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| Keywords: | three-prism artificial reef massive separation water flow field upwelling current wake vortex region numerical simulation |
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