OpenSHIP is an industrial research project that uses open source computational fluid dynamics (CFD) software to improve ship design and reduce costs. The project aims to develop a virtual prototype that simulates the interaction between a ship's hull and propeller to predict hydrodynamic performance. This will allow for reduced testing costs and improved propeller and hull designs. The consortium includes ship research, IT, university, and technology transfer organizations who will develop one-way and two-way coupling models, benchmark software, and high performance computing infrastructure over the three year project period.

2. OpenSHIP – Highly reliable computational fluid-dynamics (CFD) simulations
g y fluid- y ( )
for the prediction of the hydrodynamic performance of the hull-propeller
hull-
system in OpenSource background
OpenSHIP is an industrial research project
to improve the hydrodynamic performance of
the hull-propeller system in order to reduce the
ship design costs for shipbuilding companies
and ship owners.
OpenSHIP is co financed by the ERDF - European Regional Development Fund - Friuli Venezia Giulia Region
co-financed
Operational Programme 2007 - 2013, in the Call for industrial research projects in the field of shipbuild industry and
yachts. The project was launched on October the 1st 2010 and has a duration of 36 months.
2 The OpenSHIP project

3. The project idea
p j
OpenSHIP uses solutions coming from High Performance
Computing resources (HPC) and high - quality simulations of flows
around the hull and the propeller, based on OpenSource software.
The open source software, as a substitute or integrated with
commercial softwares allows to reach some important aspects such as
softwares,
• lower cost of licenses;
• higher flexibility;
• hi h customization.
higher t i ti
The background idea is to develop a virtual prototype or simulation framework which takes into account
the interaction between the hull and the propeller operating in the actual hull wake.
It is an ambitious goal since this procedure aims to become part of a standard ship design process.
3 The OpenSHIP project

4. Activities
Industrial research
• one-way hydrodynamic coupling between hull and propeller, in which
one way
the propeller operates behind the appended hull without hydrodynamic
feedback;
• two-way hydrodynamic coupling in which the propeller operates behind
after “OpenFOAM: origins and evolution”
the appended hull with hydrodynamic feedback;
Eugene de Villiers - Engys Ltd
OpenSHIP Seminar @ University of Trieste
• RANS model:
− set-up of simulations with both structured and hybrid grids, and
assessment of different OpenSource grid generators;
− study, development and implementation of the mathematical models
and numerical schemes available in the OpenFOAM library;
− design and implementation of the computing infrastructure HPSC -
High Performance Scientific Computing;
• potential model:
− development of a new Boundary Element Method (BEM) software
for the simulation of potential flow around the hull with non stationary
and fully nonlinear free surface and lifting surfaces.
4 The OpenSHIP project

5. Activities
Experimental development
• RANSE model:
− customization and advanced use of the OpenFOAM library for the
prediction of the total hull resistance in calm water and the
after “CFD Applications in Naval Architecture” hydrodynamic performance of the propeller operating in the
Andrea Di Mascio - CNR - INSEAN actual hull wake;
OpenSHIP Seminar @ University of Trieste
− development, customization and advanced use of OpenSource grid
generators;
• potential model:
− non stationary formulation for integration with a model for the 6
DOF motion of the ship;
− use of unstructured and non conformal meshes to implement
adaptive mesh refinements based on the solution and complete
automation of the meshing process;
• development of a benchmarking platform shared by partners for direct
comparison of results obtained with commercial and OpenSource
software.
5 The OpenSHIP project

6. Benefits
The development of the virtual prototype will bring significant advantages:
• reducing the total resistance and power in calm water;
• improving the quality of the wake in the propeller disk;
• drastic reduction of the cost of the experimental tests in the towing tank;
p g ;
• reduction of risks related to the global and local vibrations induced by the propeller;
• development and commissioning of a HPC infrastructure as a reference computing
system for CFD application;
• improvement of the scientific and technological know-how in CFD and HPSC;
• development of a customized service for the prediction of the performance of the
p p p
propeller-hull system;
• reduction of costs of the licenses of commercial software used in the hydrodynamic
design;
• improvement in the know-how to perform complex computations on increasingly
complex computational resources developed in the project.
p p p p j
6 The OpenSHIP project

7. Partners
An enterprise involved in ship design and research, a small company in the field
of Information Technology, two universities and a science and technology park.
Different experiences and interdisciplinary skills that contribute to the
achievement of practical results in the field of ship design and in the growth of
the scientific and business regional community.
The industrial research and experimental development are carried out by
CETENA - the Italian Ship Research Centre (lead partner) and Spring Firm Srl,
in partnership with the Department of Civil Engineering and Architecture of the
University of Trieste and the team of research on Applied Mathematics of SISSA
- International School for Advanced Studies.
The coordination and dissemination are in charge of Friuli Innovazione,
Research and Technology Transfer Centre.
7 The OpenSHIP project

8. THANK YOU FOR YOUR ATTENTION
Contacts
Annalisa Alcinesio
A li Al i i
CETENA - the Italian Ship Research Centre (lead partner)
Phone +39 010 5995 769
E-mail alcinesio@cetena.it
E il l i i @ t it