openpiv
Installation
SKILL.md
OpenPIV
Overview
OpenPIV (Open Particle Image Velocimetry) analyzes fluid flow from PIV image pairs. It covers preprocessing, cross-correlation, vector validation, outlier replacement, smoothing, and scaling to physical units.
Everything below is verified against openpiv 0.25.4. The API moves between releases — check
inspect.signature() before trusting a snippet against a different version.
When to use
Use this skill when working with experimental PIV or flow-visualization image pairs: measuring 2D velocity fields, tuning interrogation-window parameters, validating vectors, or deriving vorticity, strain rate, and turbulence statistics. For simulating flow rather than measuring it, use a CFD skill instead.