Journal of Marine Science and Technology

Journal of Marine Science and Technology

Calculation of rudder hydrodynamic coefficients by simulation of static towing test

Document Type : Original Manuscript

Authors
Moloud Ariyan 1
Ahmad Hajivand 2
Etemadodin Rabei Gholami 1
1 Department of Naval Architect, Faculty of Marine Engineering, Khoramshahr Marine Science and Technology University, Iran
2 department of Naval Architect , Faculty of Marine Engineering, Khoramshahr Marine Science and Technology University, Iran
10.22113/jmst.2017.92715.2038
Abstract
Maneuverability is an important quality of marine vehicles. Hydrodynamic coefficients of ship and rudder should be derived to simulate maneuvering tests. These coefficients can be obtained by using captive model test and empirical formula. Accuracy of rudder hydrodynamic coefficients is important to calculate rudder force as the most influence force in ship maneuver, precisely. Empirical formula usually are correspond to single rudder ships and for twin rudder ships numerical or experimental method are used. In this paper, by using numerical method and simulation of static towing test in computational fluid hydrodynamic environment for different angles, linear and nonlinear rudder hydrodynamic coefficients are calculated. Also, fluid velocity field around rudder is obtained to investigate separation for high rudder angle. The comparison of simulated results with the available experimental shows a very good agreement among them.
Keywords
Maneuver
Rudder hydrodynamic coefficients
linear and nonlinear damping coefficients
Computational Fluid Dynamic

Subjects

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  • Receive Date 12 September 2017
  • Revise Date 16 December 2017
  • Accept Date 20 December 2017
  • Publish Date 22 July 2020