A Preliminary Study on Numerical Waves and Its Impact on Horizontal Plate Based on Fluent

2018 5th International Conference on Coastal and Ocean Engineering

Hu, Jinpeng^1 ; Liu, Shihui^1 ; Zhu, Ling^1

Civil and Transportation College, South China University of Technology, Guangzhou

510640, China^1

关键词: Horizontal plates;    Impact pressures;    Incompressible fluid;    Moving boundaries;    Numerical wave tanks;    Original structures;    Physical model test;    Secondary development;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/171/1/012014/pdf
DOI  :  10.1088/1755-1315/171/1/012014

来源: IOP

【 摘 要 】

Based on the N-S equations for viscous, incompressible fluid and RNG k -turbulence model, a two dimensional Numerical Wave Tank is established, utilizing the secondary development function of Fluent software and the VOF method. A two-dimensional linear regular wave and a random wave are generated by defining the motion of moving boundary and adding wave absorbing zone at the end of the wave tank. The resulting numerical wave shape agreed well with the theoretical shape. The simulated wave spectrum of random wave keeps the original structure of the target spectrum. The impact of waves on the horizontal plate is simulated referring to the existing physical model test. Compared with the physical and the numerical pressure data of 11 pressure points under the horizontal plate, it is found that the two datas fit well, indicating the effectiveness of Fluent in simulating the interaction between waves and structures, which lays a foundation for further exploring the factors that affect the magnitude of the impact pressure on the horizontal plate.