physics.fluid.concentric_reducer

O2: concentric reducer K=0.5(1−A2/A1) vs a separate-module identity (≤2 ULP). Not C_c, not α, not (v1−v2)², not catalog K, not gradual contraction, and not Q=Av. ≤2 ULP vs O3 applies only to the published tabulated concentric-reducer vectors. Not catalog K, not pipe-entrance geometry, not sudden expansion (v1−v2)², not Darcy, and not Q=Av.

This summary records the outcome of the verification run. The full test corpus, oracle implementations, reference tables and generators are retained privately. Their digests identify those artifacts; a digest alone does not let a reader independently reproduce the full verification run.

Recorded result

8/8 passed

Oracle

O3 · mpmath 1.4.1

Reference table commitment (SHA-256)

c2b0278119f6ff4b754c1b9e16a0a709ba74e563248946b203532ce9bf3e9f6c

Generator commitment (SHA-256)

2343a9954d9a408b6e6b53c665683e6168347ec7722045c4e6b2f780e1f670bb

Check a calculation

Use the capability's public input schema and examples to call the versioned REST API or MCP. These interfaces remain available without downloading the validation infrastructure. A successful example checks that example; it does not establish that the complete private suite has been independently reproduced.