Session: 08-03-02 Free Surface Flows

Paper Number: 104552

104552 - Study on Self-Propelled Wake Characteristics of Surface Ship 

The complex wake generated by the coupling of the propeller rotating wake, the separated wake and the free surface wave-making has a great influence on the multi-ship parallel, replenishment and recovery. The self-propulsion wake field of surface ship can be divided into three regions according to the distribution of transverse wave and divergent wave, namely, the boundary region of transverse wake and divergent wake, Kelvin wake and narrow V-shaped wake, as well as turbulent wake, propeller rotating wake and Kelvin wake. The flow separation is caused by the change of the three-dimensional shape of the ship tail. The study of self-propelled near-field wake of surface ships is of great significance to the design of ships close to the mother ship, such as recovery boats. This paper focuses on the near-field turbulent wake, propeller rotating wake and Kelvin wake area behind the hull. The ship model full appendaged DTMB5415M with propeller is selected as the research object. Considering fluid viscosity, URANS simulation method is used to simulate the wake velocity, flow field pressure. The wave pattern, and the wake velocity are simulated and analyzed. The wave height distribution, velocity distribution of the hull wake field and the flow characteristics are obtained. The simulation results can give a detailed description of the near-field wake characteristics of the surface ship and the optimal path planning for the recovery boats.

Presenting Author: Han Xiang School of Naval Architecture and Ocean Engineering

Presenting Author Biography: Han Xiang, postgraduate student, Huazhong University of Science and Technology

Authors:

Han Xiang School of Naval Architecture and Ocean Engineering
Weihua Deng School of Naval Architecture and Ocean Engineering
Yanlin Zou School of Naval Architecture and Ocean Engineering
Xunming Wang School of Naval Architecture and Ocean Engineering
Dakui Feng School of Naval Architecture and Ocean Engineering