CFD simulation of complex inland ship manoeuvring
Conference/JournalMARIN Report 136
Date27 jun. 2023
In 2019 Rijkswaterstaat, part of the Dutch Ministry of Infrastructure and Water Management, and MARIN joined forces to investigate inland ship manoeuvring based on actual situations found on Dutch waterways.
With input provided by the government, MARIN investigated the influence of typical occurrences such as irregular riverbanks and uneven riverbeds on the ship’s manoeuvrability in shallow water conditions. In 2022, the scope was extended to include the complex ship-ship interaction during an overtaking manoeuvre or a head-on passage. In addition to numerical results, real-life measurements were also obtained as part of the investigation. Further numerical work entailed simulation sweeps of (combined) yaw and drift configurations to obtain hull loads that in turn serve as input for fast-time models that are developed by MARIN.
With input provided by the government, MARIN investigated the influence of typical occurrences such as irregular riverbanks and uneven riverbeds on the ship’s manoeuvrability in shallow water conditions. In 2022, the scope was extended to include the complex ship-ship interaction during an overtaking manoeuvre or a head-on passage. In addition to numerical results, real-life measurements were also obtained as part of the investigation. Further numerical work entailed simulation sweeps of (combined) yaw and drift configurations to obtain hull loads that in turn serve as input for fast-time models that are developed by MARIN.
Contact
Guido Oud
Researcher
MODELLING USING REFRESCO
The complexity of the physics involved in these situations does not allow for a great deal of simplification in modelling. MARIN’s proprietary Computational Fluid Dynamics (CFD) software ReFRESCO was therefore used for the numerical simulations, combining its demonstrated hydrodynamic accuracy and its versatility in delicate mesh deformation, which is required to accommodate the ship’s motion in shallow water.
Rendering of an overtaking manoeuvre simulated with ReFRESCO