Numerical simulation of the effect of target distance variables on vertical scour of submerged water jets
Numerical simulation of the effect of target distance variables on vertical scour of submerged water jets
Water jet technology has been increasingly applied to subsea trenching operations in recent years.In this paper,from the practical point of view of subsea salvage,based on Flow-3D fluid software,it is concluded that the calculation results obtained by using nested grid,and the error is about 13%smaller than the previous simulation results,which proves that the grid division method is feasible and credible.The target distance is an important parameter affecting water jet scouring,and in this paper,based on the nested grid,with different target distances as variables and the maximum scouring pit depth as the measurement parameter,the relationship between the target distance 𝑚 and the maximum pit depth during water jet pit punching operation was investigated.And an empirical formula for the variation of pit depth with target distance in the main section under a specific condition is obtained.
Chen Hao;Teng Xian-bin;Zhu Fa-xin;Zhang Zhi-bin;Zhang Xiao;
College of Shipping and Maritime Transport, Zhejiang Ocean University, Zhoushan, Zhejiang 316000, China;College of Marine Engineering, Guangzhou Maritime University, Guangzhou, Guangdong 510700, China;College of Shipping and Maritime Transport, Zhejiang Ocean University, Zhoushan, Zhejiang 316000, China;College of Marine Engineering, Guangzhou Maritime University, Guangzhou, Guangdong 510700, China;College of Shipping and Maritime Transport, Zhejiang Ocean University, Zhoushan, Zhejiang 316000, China;
submerged water jets target distance variables nested grids numerical simulation empirical formulation
1-10 / 10
评论