CFD visualisation of flow through a rim drive azimuth thruster, showing velocity structures and turbulence in the wake with colour‑coded flow patterns

Propulsion and hull integration

The integration of propulsion and hull is crucial for obtaining high efficiency, reducing pressure pulses and improving interaction effects.

CFD can be used efficiently in propeller/hull integration to optimise performance.

Examples of studies:

Bare hull or self-propulsion simulations using virtual propeller model or sliding mesh technique with the real propeller geometry to predict propeller/hull interaction effects and optimise propulsive system performance.
Evaluation and/or optimisation of headbox and appendage designs.
Analysis and optimisation of propeller rotational direction, neutral rudder angles (toe in/out) or thruster orientation (tilt and toe in/out).
Thruster-thruster interaction and/or thruster-hull interaction (e.g. nozzle tilt).
Optimise tunnel thruster installation, tunnel inlet shape, positioning of tunnel thrusters and effect of tunnel grids.
Identify propeller slipstream interaction with appendices.
Static/dynamical loads for structural analyses.

CFD velocity map of flow around a ship tunnel thruster and hull section, highlighting wake development

Fore Ship TT

CFD pressure map of twin rim drive azimuth thrusters, showing flow distribution around propellers and housings

Hull SM Pressure - Hydrostatic Pressure

CFD flow lines around a ship hull, propeller and swing-up azimuth thrusters, showing wake patterns

CFD visualisation of flow from a tunnel thruster, showing wake velocity distribution

CFD visualisation of flow from an azimuth thruster along the hull, showing wake velocity and flow distribution