Wageningen 2025: A Workshop on CFD in Ship Hydrodynamics
Background
International workshops on numerical methods in ship viscous flow have been held regularly over a long period of time. The workshops were held in 1980 (G), 1990 (G), 1994 (T), 2000 (G), 2005 (T), 2010 (G) and 2015 (T) in Gothenburg (G) and Tokyo (T). This website outlines the next workshop in the series, hosted by the Maritime Research Institute Netherlands (MARIN) and to be held in Wageningen. Initially, the aim was to have the next workshop in 2020, but due to SIMMAN activities and the worldwide pandemic, this was unfeasible, and a rescheduling was needed. The organization has now decided to host the workshop in the fall of 2025. As before, the objective is to assess state-of-the-art CFD methods for ship hydrodynamics using several well specified test cases, to aid physical understanding and code development and to strengthen the reliability of CFD for ship design and evaluation.
New in Wageningen 2025 is:
- A case focused on prediction of wave breaking is included to get more insight into the physics and performance of air-water interface prediction methods and their prediction capability in CFD for ships with breaking bow waves.
- The free running course keeping case will focus on motions in head and stern quartering regular waves. Special attention will be paid to validation of the surge and sway forces and the yaw moment and to the propeller and rudder loads.
- A full-scale case is included to establish the uncertainties and accuracy of full-scale ship powering and wake field predictions.
- A model-scale cavitation case is included to compare CFD predictions for propeller open water and in-behind conditions. The case has been selected by the ITTC for round-robin tests by cavitation testing facilities, but experimental data is not yet available.
- The turbulence test case will focus exclusively on scale-resolving simulations, with a detailed analysis of the turbulent flow and vortical structures.
- To better enable cross-comparison between results and to obtain insight into detailed aspects of the submissions, participants are now required to submit results for “packages”: a series of mandatory computations. For example, for the full-scale case, a package is being considered of mandatory computations of propeller open water, resistance and propulsion. The full package should be submitted to be able to participate in the workshop.
Hulls
The same hulls as in the Gothenburg 2010 and Tokyo 2015 workshops and two new hulls will be used, namely:
- The Japan Bulk Carrier (without ESD) (JBC), dedicated to turbulence
- The Korean Container Ship (KCS), dedicated to breaking waves
- The ONR Tumblehome (ONRT) destroyer, dedicated to motions in waves
- The JoRes1 Tanker, dedicated to full scale prediction
- The research vessel Nawigator XXI from University of Szczecin, dedicated to cavitation prediction
Format
All participants are required to deliver packages of computed results for one or more of the test cases described in the instructions. These results will be compiled by the organizers and presented in a common format for easy comparison between computations and with available validation data. The organizers will also assess the computations for each hull and present that at the workshop for invited external critiques and general discussion. No papers will be presented at the workshop, but they will be included in the proceedings. At the workshop, methods and computations will be presented in the form of posters.
Invitation
The workshop is open to all groups interested in development and application of CFD for ship hydrodynamics and willing to discuss the details of their submissions.
Date and venue
The workshop will be held in Wageningen, The Netherlands, in the fall of 2025.
Organizers
- Serge Toxopeus (host), Maritime Research Institute Netherlands (MARIN), Wageningen, The Netherlands, Europe representative
- Frederick Stern (chair), University of Iowa, Iowa City, Iowa, USA, America representative
- Takanori Hino (secretary), Yokohama National University, Yokohama, Japan, Asia representative
- Michel Visonneau, ECN-CNRS, Nantes, France, Europe representative
- Decheng Wan, Shanghai Jiao Tong University (SJTU), Shanghai, China, Asia representative
Information
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