Abstract No.C171130-058
Author name(s): Zhiyong WANG1,2, Wei HUANG1, Sheming FAN1,2, Qun SUN1,2, Chenling ZHANG1,2
Company: 1. Marine Design & Research Institute of China, China; 2. Shanghai Key Laboratory of Ship Engineering, China
The hydrodynamic performances of contra-rotating rudder propeller are predicted at different advanced coefficients based on Open FOAM software platform. IDDES and sliding mesh method are utilized, and FFT is performed on the thrust coefficients. The numerical results for a CRP indicate that the utmost errors of thrust and torque coefficients are 7.87% and 2.71%. Sliding mesh method with IDDES method can satisfy the need of accuracy in engineering practice. Pressure drag is the main part of drag force of pod and strut. There is a reverse flow at the front side of strut. The optimization of strut can be from two aspects above. The existence of strut and pod for CRRP can decrease vibration of shaft force compared with conventional CRP.
KEY WORDS: contra-rotating rudder propeller; hydrodynamic performance; IDDES; sliding mesh method
All Rights Reserved. If you need the entire text, please contact the author or intl.exchange@ssnaoe.org