Simulation-Based Analysis of Hull-Propeller Interaction for a Single-Screw Transport Ship
Paper i proceeding, 2014

The hull-propeller interaction of a single-screw transport ship is investigated in model scale using large-eddy sim- ulation. The analysis is focused on the unsteady effective wake and its impact on the propeller. For the configuration under study, there is a significant flow separation upstream of the propeller which influences the operation. A com- plete geometrical model of the propeller is included in the simulations using two different computational techniques (dynamic grids and sliding interfaces respectively). Com- puted quantities include the time-resolved thrust, torque and side forces on the propeller, as well as the load on in- dividual blades. The simulated unsteady flow field in the stern region and around the propeller blades is studied in detail. Results are also provided for the pressure fluctua- tions on the hull above the propeller. Comparison with ex- perimental measurements is carried out both for the flow field and forces on the propeller. Furthermore, results are presented for the towed hull (without propulsion) and the propeller in open-water condition, and the hydrodynamic differences between the conditions are analysed. A dis- cussion is included concerning the important difference between the actual (instantaneous) environment the pro- peller operates in and the averaged flow which typically is used as input in the design process.

numerical simulation


Ship propulsion


Mattias Liefvendahl

Chalmers, Sjöfart och marin teknik, Marine Design

Rickard Bensow

Chalmers, Sjöfart och marin teknik, Marine Design

30th Symposium on Naval Hydrodynamics


Hållbar utveckling




C3SE (Chalmers Centre for Computational Science and Engineering)



Strömningsmekanik och akustik

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