Workshop on CFD in Ship Hydrodynamics

International workshops on numerical methods in ship viscous flow have been organised 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).

The next workshop in the series will be hosted by MARIN in Wageningen, in the fall of 2025. The objective remains the same: 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. All participants are required to deliver packages of computed results for one or more of the test cases.

New features of the 2025 edition

• 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 on detailed analysis of the turbulent flow and vortical structures including unsteady effects and will be especially suited for scale-resolving simulations.
• 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 resistance, propulsion and propulsion with roughness. The full package should be submitted to be able to participate in the workshop.

The workshop is open to those interested in the development and application of CFD for ship hydrodynamics, and willing to discuss the details of their submissions.

For more information visit https://w2025.nl/ or contact Serge Toxopeus.