physics.fluid.hydraulic_jump

• Golden tests 2 / 2
• Boundary tests 10 / 10
• Property tests 5 / 5
• Production surface contract 3 / 3
}
• Engine tested Yes
• Source checked Yes
• Artifact integrity PASS
• Production attestation Embedded snapshot: STALE · Last attested schema matched 1.0.0 snapshot / local build · Semantic contract ✓ · Last attestation PASS · current evidence changed · re-attestation required · Public/cache ✓ · Origin ✓ · Live production status PASS (0 stale; 163 CURRENT) @ 2026-09-17T09:03:11.906Z
• Semantic contract PASS
• Evidence attested at 2026-09-17T09:03:11.074Z
• Last production check 2026-09-17T09:03:11.074Z
• Public / cache PASS
• Origin PASS
• Supplemental domain review Not performed
• Named expert review Not performed

• release artifacts aligned PASS
• schema valid input executes PASS
• engine success output validates schema PASS

Fingerprint sha256:abbd973162745910af65ab983225e0061f8c9bcf5ea59239e954426a3755269e

Input schema sha256:9c041efc9c0f603cf0325801f10b8f90e03e49ef0f7fa74f39df5593b1e6ce4f · Output schema sha256:292f0bd466be0e5ea6c0ecf6289c63deeafed233e31469d519403ce700c6e9ab · Build-time SHA-256 digests prove published artifacts agree with each other (release_integrity.scope=workspace). Production attestation GETs canonical URLs twice (public/cached view and origin), including Capability HTML, via npm run attest:production --write (published at /.well-known/calculatorx-production-attestation.json) and fails if the public Capability page advertises a different calculation_version. This is artifact consistency, not an independent immutable release log.

Tool

hydraulic-jump

Engine

hydraulic-jump

Engine build

2026-09-17

Evidence core

2026-09-17T07:22:11.551Z

Rendered

2026-09-17T08:49:50.939Z

Last reviewed

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Assumptions

• Rectangular hydraulic jump: y2/y1 = (√(1+8 Fr₁²) − 1)/2; Fr₁ > 1
• ΔE = (y2 − y1)³ / (4 y1 y2); Fr₂ = Fr₁ / (y2/y1)^{3/2}
• Not a Froude wrap, not Manning, not Chezy, not a weir, not Q=Av

Limitations

• Rectangular hydraulic jump: y2/y1 = (√(1+8 Fr₁²) − 1)/2; Fr₁ > 1
• ΔE = (y2 − y1)³ / (4 y1 y2); Fr₂ = Fr₁ / (y2/y1)^{3/2}
• Not a Froude wrap, not Manning, not Chezy, not a weir, not Q=Av