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Three-dimensional hydrodynamic model of concrete tetrahedral frame revetments

四面体框架群三维水动力模型

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Abstract

Revetments of concrete frame tetrahedrons are being used more and more in river engineering in China. Due to their complex geometry, it is difficult to measure the velocity fields inside them using traditional measurement methods. This limits understanding of their mechanics, potentially leading to suboptimal solutions. A 3-D hydrodynamic model based on the commercial computational fluid dynamics (CFD) code, Fluent, was developed to predict velocity fields and drags. The realizable k-ɛ model was adopted for turbulent closure of the Reynolds averaged Navier Stokes (RANS) equations. The study demonstrates that the numerical model can effectively supplement experimental studies in understanding the complex flow fields and mechanics of concrete frame tetrahedron revetments. Graphs showing the drag coefficient C D versus Reynolds number Re and lift coefficient C L versus Reynolds number Re were produced.

摘 要

四面体框架群(TFR)防护方法在我国的河流工程中正得到越来越多的应用, 然而由于其复杂的几何形状, 采用传统的量测手段准确量测四面体框架群内的流场遇到极大障碍, 这限制了研究者对四面体防护方法的深入理解. 本文利用CFD 通用代码Fluent, 建立了用于计算四面体框架群流速场和阻力大小的三维水动力数值模型. 采用可实现k-ɛ 紊流模型封闭雷诺时均方程. 研究表明该数值模型可以有效补充物理试验研究工作, 有助于理解四面体框架复杂的三维流场和防护机理, 分别给出了阻力系数CD 与雷诺数Re 以及升力系数CL 与雷诺数Re 的关系图.

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Authors and Affiliations

  1. College of Civil & Hydroelectric Engineering, China Three Gorges University, Yichang, 443002, China

    Zhu Gao  (高柱)

  2. Ningbo Huitong Engineering Construction Co.Ltd, Ningbo, 315000, China

    Xing Li  (李星)

  3. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China

    Hong-wu Tang  (唐洪武)

  4. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China

    Zheng-hua Gu  (顾正华)

Authors
  1. Zhu Gao  (高柱)
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  2. Xing Li  (李星)
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  3. Hong-wu Tang  (唐洪武)
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  4. Zheng-hua Gu  (顾正华)
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Corresponding author

Correspondence to Zhu Gao  (高柱).

Additional information

Foundation item: Supported by the Science Foundation of China Three Gorges University (No. 0620070016), Opening Foundation of the Environmental Engineering Key Discipline from Zhejiang University of Technology (No. 20080218), NSFC (No.50779014, No.50879019), Ph.D. Discipline Foundation of the Ministry of Education of China (No.200802940001), Jiangsu “333” Program for High Level Talent, “Six Talent Peak” Project Foundation of Jiangsu Province (No.2007006), and “11th Five-year Plan” (2008BAB29B09).

GAO Zhu was born in 1978. He is a lecturer of China Three Gorges University. His current research interests include hydraulics and river mechanics, etc.

LI Xing was born in 1978. He is an engineer of Ningbo Huitong Engineering Construction Co.,Ltd. His current research interests include hydraulics, river and seawall construction, etc.

TANG Hong-wu was born in 1966. He is a professor of Hohai University. His current research interests include hydraulics and river mechanics, etc.

GU Zheng-hua was born in 1974. He is a associate professor of Zhejiang University. His current research interests include hydraulics and river mechanics, etc.

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Gao, Z., Li, X., Tang, Hw. et al. Three-dimensional hydrodynamic model of concrete tetrahedral frame revetments. J. Marine. Sci. Appl. 8, 338–342 (2009). https://doi.org/10.1007/s11804-009-8092-2

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  • DOI: https://doi.org/10.1007/s11804-009-8092-2

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