piv_divergence — PIV `field` op

• Data kinds: flow2d → image2d

• Call: import pivops; pivops.piv_divergence(flow, spacing=1.0) (or opspiv.get("piv_divergence"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

発散 `d(dy)/dy + d(dx)/dx`。非圧縮なら 0 —— 独立な検算に使える。

Detailed usage guide

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• piv_flow_from_particles — py -3.11 examples/piv_flow_from_particles.py

Ops the type connects to (they accept `image2d` as input)

piv_cross_correlate · piv_multipass · piv_deform_pass · strain_from_displacement · correlation_quality · speckle_quality

Same category (`field`)

piv_vorticity · piv_flow_magnitude · piv_to_velocity · piv_velocity_gradient · piv_q_criterion · piv_swirling_strength · piv_strain_rate

*Provenance: pivops.py — PIV operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

piv_divergence — PIV field op