Hydrodynamic interaction among hull, rudder and bank for a ship sailing along a bank in restricted waters

By applying a CFD tool to solve the RANS equations, the viscous flow around a model of hull-rudder system towed along a bank in shallow water is numerically simulated. Hydrodynamic forces and moments acting on the ship are calculated for different ship-bank distances and rudder angles. A container ship, KCS, is taken as an example for the numerical study. Under the assumption of low ship speed, the influences of free surface elevation and ship squat are assumed to be negligible. Based on the calculation results, the hydrodynamic interaction among the hull, rudder and bank is analyzed.

[1]  Frederick Stern,et al.  CFD analysis of broaching for a model surface combatant with explicit simulation of moving rudders and rotating propellers , 2012 .

[2]  Frederick Stern,et al.  Flow pattern around an appended tanker hull form in simple maneuvering conditions , 2005 .

[3]  Riccardo Broglia,et al.  Experience from SIMMAN 2008—The First Workshop on Verification and Validation of Ship Maneuvering Simulation Methods , 2011 .

[4]  Frederick Stern,et al.  Verification and validation of RANS maneuvering simulation of Esso Osaka: effects of drift and rudder angle on forces and moments , 2003 .

[5]  D. C. Lo,et al.  Application of Computational Fluid Dynamics Simulations to the Analysis of Bank Effects in Restricted Waters , 2009, Journal of Navigation.

[6]  Yang Yong.  Calculation of hydrodynamic forces on a KVLCC hull in sway motion in deep and shallow water , 2011 .

[7]  Li Dong-li.  Computation of hydrodynamic derivatives related to ship maneuverability in viscous flows , 2010 .

[8]  Zaojian Zou,et al.  Numerical Study of Viscous Hydrodynamic Forces On a Ship Navigating Near Bank In Shallow Water , 2010 .

[9]  Z. Zou,et al.  Computation of the viscous hydrodynamic forces on a KVLCC2 model moving obliquely in shallow water , 2009 .

[10]  Katrien Eloot,et al.  Systematic model tests on ship-bank interaction effects , 2009 .

[11]  Joel H. Ferziger,et al.  Computational methods for fluid dynamics , 1996 .

[12]  Weeratunge Malalasekera,et al.  An introduction to computational fluid dynamics - the finite volume method , 2007 .

[13]  Zao-jian Zou,et al.  Numerical Simulation of Transient Flow Around a Ship in Unsteady Berthing Motion , 2009 .

[14]  Lars Larsson,et al.  Computational fluid dynamics (CFD) prediction of bank effects including verification and validation , 2013 .

[15]  Naoya Umeda,et al.  CFD, system-based and EFD study of ship dynamic instability events: Surf-riding, periodic motion, and broaching , 2011 .

[16]  Katrien Eloot,et al.  A methodology for evaluating the controllability of a ship navigating in a restricted channel , 2007 .