SHIPFLOW 7.1 Hydrodynamics CFD Software

SHIPFLOW is a leading computational fluid dynamics (CFD) suite developed by FLOWTECH International AB for ship hydrodynamics design, hull optimization, resistance prediction, propulsion analysis, and seakeeping (motions in waves). It’s optimized for naval architects, with automated grid generation, specialized solvers for hull geometries, and tools for full-scale simulations. Version 7.1 is a minor update within the SHIPFLOW 7 series, focusing on enhancements to accuracy, speed, and robustness—particularly in the MOTIONS module for wave simulations and RANS solver for high block coefficient ships.

  • Key Features in SHIPFLOW 7.1:
    • MOTIONS 7 Rework: Improved accuracy and speed for seakeeping simulations on ships, yachts, multi-hulls, semi-submersibles, and floating structures. Supports parametric roll predictions and automatic HTML reports.
    • RANS Solver Enhancements: New grid settings for better results on blunt bows/high-block ships; up to 10x faster than version 5.2 predecessors (e.g., resistance in ~15 minutes, self-propulsion in ~1 hour).
    • Other Modules: Includes BASIC (potential flow), RANS (viscous flow), and integrations with CAESES for parametric optimization.
    • Validation: Achieves ~1% error vs. sea trials for power predictions, including hull roughness effects.

  • SHIPFLOW 7.1
    SHIPFLOW 7.1