Wärtsilä Equipment
Wärtsilä OPTI Design
CFD-based propulsion design methodology that optimises propeller, engine and hull together, including full-scale analysis of propeller-hull interaction, to reduce fuel consumption and improve EEDI.
Description
Wärtsilä OPTI Design is a propulsion design methodology that uses computational fluid dynamics (CFD) and expert design knowledge to match propeller, engine and hull. Rather than optimising the aft-ship flow and propeller separately, it calculates the ship and propeller together to maximise total propulsive efficiency, including hull efficiency and relative rotative efficiency.
Key features
- CFD analysis of propeller performance and propeller-hull interaction
- Calculations at both model scale and full scale
- Short turnaround allowing extra design iterations on hull shape and main propulsion parameters (diameter, RPM)
- Evaluation of retrofits and energy saving devices
- Early checking of propulsion and driveline design choices
- Full-scale CFD for trim optimisation studies
- Based on experience from more than 10,000 FPPs and 20,000 CPPs produced
Benefits
- Reduced fuel consumption and exhaust emissions
- Improved EEDI
- Lower risk of design defects and shorter design process
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