CFD-based analyses for a slow speed manoeuvrability model

In the context of the low speed and high drift angles manoeuvres, a limited number of experimental test cases are available in open literature. Consequently, the ability to reliably predict the hull forces (and the related hydrodynamic coefficients) via computational fluid dynamics calculations may represent a significant added value to further tune or to generate new simplified hull forces models to be employed in a manoeuvring code. Even if some applications can be found in the literature for selected cases and conditions, as those considered in the present work, a more systematic comparison is mandatory to confirm the reliability of these numerical approaches. In light of this, in the present work a systematic application of the open-source viscous-based flow solver OpenFOAM to predict forces at low-speed manoeuvring conditions for two ship test cases (the KCS and the KVLCC) is presented. The proposed numerical setup, specifically designed to be applied in the early ship design stage (limiting computational effort), shows a satisfactory accuracy to cope with the strong off-design conditions related to these specific ship operative conditions.

[1]  Atsushi Ishibashi,et al.  Unified Mathematical Model for Ocean and Harbour Manoeuvring , 2009 .

[2]  S. Gaggero,et al.  An extensive analysis of numerical ship self-propulsion prediction via a coupled BEM/RANS approach , 2017 .

[3]  Stefano Brizzolara,et al.  EFD and CFD Characterization of a CLT Propeller , 2012 .

[4]  M. Darwish,et al.  The Finite Volume Method in Computational Fluid Dynamics: An Advanced Introduction with OpenFOAM® and Matlab , 2015 .

[5]  Diego Villa,et al.  Design of ducted propeller nozzles through a RANSE-based optimization approach , 2017 .

[6]  F. Stern,et al.  Ship motions using single-phase level set with dynamic overset grids , 2007 .

[7]  Diego Villa,et al.  Numerical Evaluation of Rudder Performance Behind a Propeller in Bollard Pull Condition , 2018 .

[8]  S. H. Mousavizadegan,et al.  Virtual maneuvering test in CFD media in presence of free surface , 2015 .

[9]  Kevin J. Maki,et al.  A Fast-running CFD Formulation for Unsteady Ship Maneuvering Performance Prediction , 2016 .

[10]  Frederick Stern,et al.  URANS simulations of static and dynamic maneuvering for surface combatant: part 1. Verification and validation for forces, moment, and hydrodynamic derivatives , 2012 .

[11]  N. Abbas,et al.  Validation of hybrid URANS/LES methods for determination of forces and wake parameters of KVLCC2 tanker at manoeuvring conditions , 2016 .

[12]  A. Gosman,et al.  Solution of the implicitly discretised reacting flow equations by operator-splitting , 1986 .

[13]  Michel Visonneau,et al.  Numerical Simulations for the Wake Prediction of a Marine Propeller in Straight-Ahead Flow and Oblique Flow , 2018 .

[14]  F. Menter.  Two-equation eddy-viscosity turbulence models for engineering applications , 1994 .

[15]  Hugh W. Coleman,et al.  Comprehensive Approach to Verification and Validation of CFD Simulations—Part 2: Application for Rans Simulation of a Cargo/Container Ship , 2001 .

[16]  Shuhong Chai,et al.  URANS study of scale effects on hydrodynamic manoeuvring coefficients of KVLCC2 , 2016 .

[17]  Stefano Brizzolara,et al.  RANS and PANEL method for unsteady flow propeller analysis , 2010 .

[18]  Frederick Stern,et al.  Turn and zigzag maneuvers of a surface combatant using a URANS approach with dynamic overset grids , 2013 .

[19]  Evert Lataire,et al.  Experiment based mathematical modelling of ship-bank interaction , 2014 .

[20]  Giulio Dubbioso,et al.  Turning ability analysis of a fully appended twin screw vessel by CFD. Part II: Single vs. twin rudder configuration , 2015 .

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

[22]  Mitja Morgut,et al.  Numerical Predictions of Cavitating Flow around Model Scale Propellers by CFD and Advanced Model Calibration , 2012 .

[23]  S. Patankar.  Numerical Heat Transfer and Fluid Flow , 2018, Lecture Notes in Mechanical Engineering.

[24]  Diego Villa,et al.  The Kriso Container Ship (Kcs) Test Case: An Open Source Overview , 2015 .

[25]  Frederick Stern,et al.  Full scale self-propulsion computations using discretized propeller for the KRISO container ship KCS , 2011 .

[26]  Lars Larsson,et al.  CFD in Ship Hydrodynamics - Results of the Gothenburg 2010 Workshop , 2011 .