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NAPA Hull Form and Performance

Optimization and eco-efficiency are increasingly important topics in hull design, setting new requirements and standards for the hull design tools used. NAPA offers the state-of-the-art tools for hull form definition and optimization throughout the entire design process. The unique NAPA hull design methodology allows an applicability exceeding conventional systems while still maintaining the precision needed for final fairing work.

NAPA applied in CFD analysis


Industry’s most advanced tools for hull design and optimization

  • Unique hull design methodology allowing better control and flexibility while still maintaining the accuracy needed for final fairing work
  • Several supported hull design methods: real 3D topological surface modelling, local and global transformations, parametric definitions and more
  • Rendered graphics, sectioning and curvature plotting tools allowing quick and visual evaluation of hull fairness
  • All necessary tools for hydrodynamic design of the hull: CFD, optimization, parametric definitions, sea keeping and maneuvering
  • Hull surface design forming the basis for compartmentation and structural models

NAPA enables generation of hull documents like polar plots, wheelhouse posters and lines drawings in visual format

NAPA Hull form and performance key features

  • Performance prediction tools integrated in hull design evaluation
  • Power prediction using empirical methods or CFD
  • Sea keeping analysis: 6. d.o.f. response in irregular waves, sea keeping criteria, downtime, wave added resistance
  • Maneuvering simulations according to IMO resolution A.751(18)
  • Circle, zig-zag, crash stop, man over board and station keeping calculations
  • Wave resistance calculation based on an integrated CFD viscous flow or potential flow solver
  • Optimum floating position and trim curves with the CFD Manager tool
  • Panel model generation and transfer option to external CFD systems
  • Multi-objective genetic algorithms to handle any kind of optimization task

For ship designers

State-of –the art tools for hull modelling and optimization enabling competitive designs throughout the design phases. Integrates hydrodynamic analysis as an easy-to-use tool in the everyday design process

For shipyards

Hull form definition and optimization tools for all design phases ranging from concept design to final fairing. Integrates hydrodynamic analysis as an easy-to-use tool in the everyday design process

For offshore design

Flexible modeler for all kind of offshore structures including semisubmersibles and jack-ups. The included panel method allows to check motions, velocities and accelerations caused by the sea conditions

For research institutes and universities

An integrated tool for CFD, hydrodynamics and creating the hull surface for production of tank test models

Success Stories

NAPA's 3D Design Tools Drive Productivity at SUNGDONG

Structural design throughput time for whole vessel models reduced by up to four weeks with NAPA D... Read more »

Japanese Kyokuyo Shipyard to improve its structural design process with NAPA Steel

NAPA’s customer base has grown steadily for NAPA Steel. We are honoured to announce the newest NA... Read more »

NAPA Data Analysis leads to €3 million investment and first commercial order for Norsepower

NAPA analysis verifies that twice the rotor sails delivers double fuel savings; 6.1% reduction in... Read more »

ClassNK-NAPA GREEN - a Comprehensive Eco-Efficiency Solution for Ship Owners and Operators

ClassNK-NAPA GREEN offers ship owners and operators a comprehensive solution to reduce fuel costs... Read more »

Bore - NAPA collaboration demonstrates environmental and financial value of operational efficiency software

1,000 tonnes of CO2 saved plus 5.8% reduction in fuel consumption, equivalent to $210,000 Read more »

Design Solutions

NAPA Hull Form and Performance+

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Contact us for more information:

Phone: +358 9 22 8131

Email: sales [ at ] napa.fi