فهرست نشریات علمی دسترسی آزاد ایران

In recent years, maritime transportation has expanded significantly, and improving efficiency and increasing thrust in marine propulsion systems have become primary objectives. In this context, given the importance of the tandem canard configuration in enhancing the performance of propeller-driven propulsion systems, the present study investigates the tandem canard configuration for the KP505 propeller installed on the KCS container ship. The experimental evaluation focuses on the effects of varying the diameter ratio and distance ratio between the propellers on the hydrodynamic coefficients. Following calibration and validation, experimental results were obtained for four diameter ratios of 0.85, 0.90, 0.95, and 1.00, and five distance ratios ranging from 0.10 to 0.20. Performance characteristics were analyzed in terms of thrust and torque coefficients, as well as efficiency, across different advance coefficients. The results indicate that the tandem canard configuration can lead to notable improvements in thrust and torque coefficients, as well as overall efficiency. Specifically, the thrust coefficient increased by up to 20%, and the efficiency improved by up to 5%. The most favorable tandem canard configuration was identified at a diameter ratio of 0.95 and a distance ratio of 0.40. Notably, implementing this configuration at an advance coefficient of 0.80 (the design point of the KP505 propeller) led to an increase in the thrust coefficient of up to 6.65% and an efficiency improvement of up to 3.32%.