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Software and Services / Solutions for Ship Design / Hull Form Design and Hydrodynamics

Hull Form Design and Hydrodynamics

Designing eco-efficient and safe hull forms for real sea conditions

The trusted industry standard for hull form design

NAPA supports hull form design from optimization in early design phases to production fairing. The hydrodynamics modules support resistance, powering, seakeeping and maneuvering calculations by industry standard methodologies.

Benefits

Better designs in shorter time

  • Real automated hull form optimization with quick design variation and optimization algorithms
  • Real 3D topological and interactive surface modelling

NAPA streamlines the design process

  • For all design stages: From concept design up to production fairing
  • Geometry kernel developed for ship hull form design, define any kind of hull shape with NAPA
  • Versatile tools for hull transformations and parametric modelling
  • All relevant hydrodynamic analysis available
  • Interface with any CFD software
  • Customizable to fit the design process

NAPA throughout the design process

Ship design is an iterative process, in which real performance data informs the next design. NAPA software, based on the same 3D models, can be used throughout the process, streamlining the entire workflow.

Hull form modelling in NAPA

NAPA Designer provides interactive and intuitive tools for hull form modelling.

Modules

Hull form design

  • Real 3D topological and interactive surface modeling
  • For all design stages: From concept design up to production fairing
  • Unique hull design methodology allowing better control and flexibility
  • Quick design variations by global and local transformations
  • Easy to start a new project based on a reference project by applying transformation
  • Integrated stability and hydrodynamic analysis allowing immediate feedback
  • Wide variety of links and interfaces for exporting the hull surface
Modules

Powering and EEDI

  • Power prediction at early design with the most common statistical prediction methods for resistance and propulsion
  • Reference library to apply corrections for the predictions
  • Select optimum propeller from the most common standard propeller series
  • Ensure that the ship design complies with EEDI
Modules

Seakeeping

  • Versatile tools for analysis of operational safety and efficiency in real sea conditions
  • Minimize the risk of losing or damaging cargo
  • Ensure passenger comfort and the operability of the ship
  • Ensure adequate longitudinal strength of the design in waves
  • Calculate hydrodynamic pressures for structure analyses with FEM
  • Analyze wave added resistance of the design
Modules

Maneuvering

  • Ensure steering ability of the design
  • Check compliance with IMO criteria
  • Create wheelhouse poster and pilot card
  • Create manoeuvring booklet
  • Perform station keeping and DP analyses

Hull Form Optimisation

Modules

Hull form optimization

Benefits

  • Real automated optimization with single user interface
  • Quick design variation keeping the level of fairness of the hull surface
  • Provides optimum hull surface in reasonable time

Features

  • Multi-objective genetic algorithms to handle any kind of optimization problem
  • NAPA Potential flow solver
    • For selecting optimal main dimensions for the hull in the initial design stage
    • For local optimization of a bulbous bow or the forward shoulder
  • Can be interfaced with any external CFD, with possibility for cloud or cluster computing
  • Possibility to consider capacity, structures, stability, seakeeping and maneuvering in the optimization setup

Additional services

  • Customized feature set for solving the customer’s optimization case
    • Hull transformation
    • Optimization
    • Interfacing to external CFD
  • Configuration and setup of the optimization framework
  • Customer support and training
Questions?

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