HALCYON CFD is an experimental software product that performs simulations of marine aero-hydrodynamic scenarios. Developed in collaboration with Woven Logic Pty Ltd

  • Physics fidelity

  • Solution speed and scalability,

  • Automatic adaptive mesh refinement


Model generation capabilities include the following:

  • Complex scenarios with one or more vessels
  • Parametric model generation and job execution
  • Automatic adaptive mesh refinement


The physics engine allows simulation of the following phenomena:

  • 3D, dynamic, unsteady, multi-fluid, fluid-structure
  • All aero/hydrodynamic forces and moments
  • 6 DOF vessel dynamics
  • Free surfaces
  • Wind, wave and tidal streams
  • Aero and hydro acoustics

HALCYON CFD is designed for aerospace, marine and maritime industry professionals.


HALCYON CFD has potential applications in a range of areas where knowledge of the effects of marine fluid dynamics is required, including:

  • Vessel and offshore structure design
  • Harbour and channel design
  • Marine and maritime simulation
  • Vessel performance estimation and optimisation
  • Vessel operations training, planning and support
  • Hydrodynamics research
  • Environmental studies
  • Signature analysis – wake and acoustic profiles
  • Human factors and ergonomics


HALCYON CFD aims to transform the simulation and analysis process by significantly improving the speed, fidelity and usability of CFD simulation software for:

  • Faster results and increased productivity
  • Improved accuracy and higher design quality
  • Reduced analysis and design costs

These benefits are realised through:

  • Efficient solution algorithms that can be significantly faster than Open FOAM in unsteady flow marine simulations
  • Remarkably efficient capability across HPC systems with several thousand cores and models up to one billion cells
  • Automatic, adaptive mesh generation, eliminating the need for manual mesh tuning
  • Parametric modeling, using Python, allowing model and component reuse
  • High speed solver, allowing finer mesh sizes and smaller time steps for greater flow detail
  • Modeling is linear in space and cubic in time, with consideration of compressibility effects, including aero-hydro acoustics

halcyon from YTEK on Vimeo.