Numerical method for waterjet thrust of trimaran considering pressure jump

被引：0
|
作者：
Zhang L. [1 ]
Zhang J. [1 ]
Shang Y. [2 ]
Dong G. [3 ]
Chen W. [3 ]
机构：
[1] Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian
[2] Department of Ocean Engineering, Texas A&M University, College Station
[3] State Key Laboratory of Navigation and Safety Technology, Shanghai Ship and Shipping Research Institute, Shanghai
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2019年 / 40卷 / 09期
关键词：
Boundary element method; Boundary layer theory; Pressure jump; RANS CFD; Self-propulsion; Thrust deduction; Trimaran; Waterjet thrust;
D O I：
10.11990/jheu.201802030
中图分类号：
学科分类号：
摘要：
To research the rapid prediction method of waterjet thrust, the mathematical model of the waterjet thrust was established by the pressure jump method in the intake duct through the balance equation of hull resistance and waterjet thrust. A new method that comprise three parts for wave-making resistance, viscous resistance and the capture area's physical quantities was proposed to achieve the waterjet thrust efficiently. The numerical problem caused by the mutual penetration between the duct surface panel and free surface panel was solved by the modification of lengthening the hull reasonably. The capture area's physical quantities was resolved based on the turbulent boundary layer theory. An comparative study on the computation of waterjet thrust via the present method versus RANS CFD method for a trimaran model was delivered. The result shows that the relative error of waterjet thrust is within 5%, and the present method quickly and effectively predicts the thrust and thrust deduction of trimaran, which has theoretical research and practical application value in engineering. © 2019, Editorial Department of Journal of HEU. All right reserved.
引用
收藏
页码：1582 / 1588
页数：6
相关论文
共 19 条
  • [1] Van Terwisga T., The effect of waterjet-hull interaction on thrust and propulsive efficiency, Proceedings of 1st International Conference on Fast Sea Transportation Conference, pp. 1149-1167, (1991)
  • [2] Alexander K.V., Coop H., Van Terwisga T., Waterjet-hull interaction: recent experimental results, SNAME Transactions, 102, pp. 275-335, (1993)
  • [3] Watson S.J.P., The use of CFD in sensitivity studies of inlet design, RINA International Conference on Waterjet Propulsion, Latest Developments, (1998)
  • [4] Kimball R.W., Experimental investigations and numerical modeling of a mixed flow marine waterjet, (2001)
  • [5] Takai T., Simulation based design for high speed sea lift with waterjets by high fidelity urans approach, (2010)
  • [6] Eslamdoost A., The hydrodynamics of waterjet/hull interaction, (2014)
  • [7] Liu C., Wang Y., Zhang Z., Et al., Research on computational methods of waterjet thrust using CFD, Chinese Journal of Computational Mechanics, 25, 6, pp. 927-931, (2008)
  • [8] Liu C., Wang Y., Gu C., Influence of hull-waterjet interaction on propulsion performances of waterjet, Journal of Shanghai JiaoTong University, 50, 1, pp. 91-97, (2016)
  • [9] Ding J., Wang Y., Research on the parametric design of an inlet duct found in a marine waterjet, Journal of Harbin Engineering University, 32, 4, pp. 423-427, (2011)
  • [10] Gong J., Guo C., Zhang H., Numerical analysis of impeller flow field of waterjet self-propelled ship model, Journal of Shanghai Jiao Tong University, 51, 3, pp. 326-331, (2017)
12