Numerical Research on Performance of Turning Motion of Hybrid Contra-rotating Propeller Podded Propulsion in Comparison with Ordinary Rudder [混合吊舱对转桨与普通桨舵回转性能的数值研究]

作者：Wang H.; Wu J.; Zhou C.

来源：Ship Building of China, 2021, 62(4): 132-141.

• Body-force propeller model
• Hybrid CRP podded propulsion
• Numerical simulation
• Overset grid
• Turning motion performance

In order to study maneuvering performance of turning motion of the hybrid contra-rotating propeller (CRP) podded propulsion, a container ship equipped with hybrid counter-rotating propeller podded propulsion and ordinary rudder respectively is taken as the research object. RANS method and overset grid technology are adopted, and the body-force propeller model is applied to simulate the influence of the propeller on the ship. Turning motion is numerically simulated in still water. Parameters, forces, and flow field characteristics of the turning motion are analyzed. The results show that a ship equipped with the hybrid CRP podded propulsion is able to complete the turning of 90 degrees or turning of 180 degrees in a shorter time than an ordinary rudder. By changing the thrust ratio of the forward propeller and the aft propeller of the hybrid CRP podded propulsion, the ship can complete turning motion with a smaller tactical diameter. Maneuvering performance of the hybrid CRP podded propulsion is better than an ordinary rudder. Fluid separation on ordinary rudder is severer than on the hybrid CRP podded propulsion. Vortex shedding is suppressed in the most area of the pod propeller, thus which vibration and noise performance is better than normal rudder. The work in the paper may provide a reference for the research on the maneuvering performance of the hybrid CRP podded propulsion.

• 单位
  华南理工大学