Hydrodynamic Experimental and Numerical Simulation Investigation of Artificial Model Reef
- 作者：JIANG Zhao-yangLIANG Zhen-linTANG Yan-liHUANG Liu-yiJIANG Man-song
- 会议时间：2007-08-01
- 关键词：artificial reef ; hydrodynamic forces ; flow field ; RNG turbulence model ; computational fluid dynamics
- 作者单位：JIANG Zhao-yang,LIANG Zhen-lin,TANG Yan-li,HUANG Liu-yi(Fisheries College,Ocean University of China,Qingdao 266003,China)JIANG Man-song(Institute of hydrodynamics.Wuhan University of Technology,Wuhan 430070,China)
- 母体文献：2007全国博士生学术论坛——海洋、水产领域论文集
- 会议名称：2007全国博士生学术论坛——海洋、水产领域
- 会议地点：青岛
- 主办单位：国务院学位办
- 语种：chi
- 分类号：TV1;U6
摘要
The hydrodynamic forces and flow field of artificial model reefs in steady flow are investigated using the Computational Fluid Dynamics (CFD) code FLUENT.The RNG k ~ ε model is employed for turbulent closure of the Reynolds-averaged Navier-Stokes equations.Numerical experiments are performed for hydrodynamic forces with seven velocities,for flow field with one velocity.The computed forces and flow field are in good agreement with the experiments using flume tank tests.The differences values between measured and computed forces are gradually augmenting as the velocity of flow increasing,the errors of computed results relative to measured results are varying in range of 5.5 %~30.1%,and the relative errors are higher than the others when the velocity of flow is unstable.The flow field is changed greatly with the development of whirlpools and upwelling,while the flow passes through the model reef creates a complex effective ambient velocity.After the flow passing by the model reef,the velocity is not precisely depicted by experiment for the reason of whirlpools and upwelling.It illuminated that the numerical simulation method is applicable and can be applied to predict the hydrodynamic forces and flow field of actual artificial reef.