Appendages

APPENDAGES

HULLS

AERODYNAMICS

WIND & WAVES

FORCES & FRAMES

INPUT & OUTPUT

OPTIMISATION

DYNAMICS

GRAPHICS

Hydrodynamics

  • Potential flow models
    • Lifting-line method
    • Full panel method (not real time)
    • Incorporates polar section evaluation
    • Cavitation model
    • Spray drag model
    • End-plating models and free-surface approximation
    • Local wave orbital velocity influence
  • Section shape model
    • Inviscid pressure calculation
    • Automated XFoil polar generation
    • External data surface evaluation (e.g. RANS section data)
  • Structural model
    • Euler beam-bending/twist model
    • Full FSI coupling to potential flow models

Design

  • Spline-based GUI foil editor for any foil configuration
  • Section shape editor with live pressure plot
  • Single element sections, or foils with flaps
  • Define ‘rondure’ (front-view) foil spline reference line
  • Define and edit cross-sectional properties as function of rondure position:
    • Section shape; live inviscid pressure distribution
    • Polar coefficients (can be determined automatically)
    • Chord, offset, twist
    • EI, GJ, shear-centre (can be estimated)

 

Reporting

  • Overall lift and drag, broken down by component
  • 6-DOF forces and moments
  • Lift and drag distributions along span
  • Sectional pressure distributions
  • Cavitation margin
  • Bending moment and shear stress along span
  • Peak strains
  • Deformation and twist along span