SHIPFLOW 8 is the latest major release of SHIPFLOW, a specialized computational fluid dynamics (CFD) software suite developed by FLOWTECH International AB for ship hydrodynamics design, hull optimization, resistance prediction, and propulsion analysis. Launched in 2024 to celebrate FLOWTECH’s 35th anniversary, it targets naval architects, shipyards, consultants, and researchers working on energy-efficient vessel designs. The software excels in simulating viscous free-surface flows, wave resistance, seakeeping, and maneuvering, with automated grid generation tailored for hull geometries. It’s the industry standard for marine CFD, used by top global shipbuilders since its inception in 1991.

This version introduces multi-fidelity CFD simulations for faster, more accurate iterations, making it ideal for early-stage design optimization to minimize fuel consumption and emissions.

Key Features and Updates in SHIPFLOW 8

SHIPFLOW 8 builds on version 7 with enhancements across all modules (e.g., SHIPFLOW +Cfd, +Motion, +Design). Major improvements include:

  • Overlapping Grids Algorithm: Substantial updates for robustness and accuracy in complex geometries, such as multi-body interactions or appendages.
  • Multi-Fidelity CFD: New simulation capabilities for balancing speed and precision in parametric studies.
  • Enhanced Usability: Improved post-processing within SHIPFLOW Design (based on advanced frameworks), automatic IGES imports for hulls (including twin-skeg designs), and seamless integration with tools like CAESES for automated optimization.
  • Performance Boost: Optimized solvers for viscous and potential flow, with cloud compatibility via platforms like Rescale for parallel HPC runs.
  • Additional Tools: Advanced resistance/propulsion predictions, seakeeping analysis, and user-friendly data presentation in naval architect formats.

What’s New in SHIPFLOW 8 (2024)

  • Multi-Fidelity CFD: Switch between potential flow (XPAN), viscous RANS, and hybrid modes for rapid design iterations.
  • Overlapping Grids 2.0: Robust handling of complex appendages (rudders, brackets, podded propulsors).
  • Automated Hull Import: Direct IGES/STEP import with automatic domain setup.
  • Cloud-Ready: Native support for Rescale, UberCloud, and HPC clusters.
  • Validation Library: 50+ benchmark cases (KCS, DTC, JBC) with automated reporting.