What's New

Release notes for PocketFlow Pro. To get the latest version, visit the download page with your licence key.

Version 1.5

2026-09

PocketFlow Pro now keeps itself up to date.

  • Shallow Water (2D) regions, fully coupled to the surrounding 3D flow.
  • Terrain import from DEM (ASC, GeoTIFF, XYZ).
  • Automatic updates, with release notes on this What's New page.
  • Split view: 2 or 4 panes, each with its own camera and result type.
  • VTK multiblock export including refinement and Shallow Water regions.
  • Refinement regions out of experimental: conservative coupling and up to 3x faster.
  • Fixed: STL rotation, offset and scale edits now rebuild the solid geometry.
  • Faster loading, resets and saves on large scenes.
  • Worked example scene (Shallow Water + refinement + terrain) in the examples folder.
  • Fixed license validation on corporate networks that inspect HTTPS traffic (affected v1.5.4).
  • A temporary connection problem to the license server now uses the offline grace period instead of stopping the application.
  • General improvements to simulation accuracy near refinement regions, startup speed, and the interface (including a Run toggle for fans, pumps and sources).
  • Better velocity prediction on steep chutes and stepped spillways.
  • Adjustment of solver defaults.
  • Fixed a start-up crash in the renderer.
  • Improved gridded terrain import.
  • Improved velocity calculations in bed cells.
  • Improved turbulence model behaviour in certain simulations.
  • Refinement regions no longer restrict downstream boundaries.
  • Improved free-surface stability in certain simulations.
  • New export fields and faster VTI export.
  • Improved turbulence model behaviour near the free surface.

Version 1.4

2026-08

Porous rock zones, flow screens with head loss, and cut-cell primitives.

  • Porous rock zones for gabions and rock structures.
  • Flow screens and trash racks with realistic head loss at any inclination.
  • Primitive shapes with smooth cut-cell surfaces and numeric transform entry.
  • Improved free-jet velocity sampling, near-bed wall distance, terrain contact and exports.

Version 1.3

2026-06

Moving objects, realistic rendering, and expanded data export.

  • Moving objects: rigid bodies in full two-way coupling, with 6-DOF motion and contact.
  • Realistic water and STL rendering with adjustable lights and HDRI.
  • Time-varying gravity g(t); per-STL wall roughness.
  • Multi-variable CSV export with spline mode; bed elevation and bed pressure outputs.

Version 1.2

2026-05

Pumps, open-channel visualisation modes, and a crisper free surface.

  • Pump model: up to four pumps per scene.
  • Open-channel visualisation modes: depth-averaged velocity, hydraulic head, free-surface elevation.
  • Interface Compression for a crisp, one-cell water surface.
  • Jet/Sheet treatment for thin plunging jets and spillway flows.

Version 1.1

2026-05

Refinement regions: a finer mesh only where it matters.

  • Refinement regions: a finer mesh around the structure of interest, fully coupled to the surrounding flow.
  • Draggable colour bar.

Version 1.0

2026-05

First release: GPU-accelerated 3D free-surface CFD on the desktop.

  • GPU-accelerated 3D free-surface solver.
  • STL geometry import with fast voxelization.
  • Baffles: thin walls and weir plates without modelling thin solids.
  • Sources and sinks with flow-rate control.
  • Velocity, pressure and turbulence visualisation, with frame recording.
  • Example scenes, licence management and a simple launcher.
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