physics.fluid.pitot

Three distinct suites: educational examples on the calculator page, this legacy regression count (17/17 golden + boundary), and the CVP verification suite below. They are not the same number. Property, metamorphic, round-trip, O3, and interface statuses/checks are recorded in the CVP Manifest . SKIP (0/0) means that suite has no published vectors.

This calculator CURRENT · Public schema 1.0.0 matches · Semantic contract ✓ · Production attested · Public/cache ✓ · Origin ✓

CVP verification suite

Protocol checks from the Evidence Manifest. Distinct from the legacy regression suite above. Verification revision 2026-09-26.o2-o3. Calculation version 1.0.0. CVP 1.0.0-proposed. 4/4 golden · 9/9 CVP boundary · 10/10 invalid · 1/1 property · 1/1 metamorphic · 8/8 O3 · 2/2 cross-interface · 5/5 CVP contract. digest eb8c62b1fc3e. O2: pitot vs a separate-module identity (≤2 ULP). Not venturi, not orifice, not Q=Av, and not two-station Bernoulli. ≤2 ULP vs O3 applies only to the published tabulated pitot vectors. Not venturi, not orifice, not Q=Av, and not Bernoulli.

• Golden (oracle-backed) 4 / 4
• CVP boundary 9 / 9
• Invalid input 10 / 10
• Property 1 / 1
• Metamorphic 1 / 1
• O3 high-precision 8 / 8
• Cross-interface 2 / 2
• CVP contract 5 / 5
• Interfaces PASS · UI (SSR) / REST / MCP
• Interface claim ui-ssr is query-result HTML, not a live browser session. Error-path engine·REST·MCP 1/1 (status, code, calculation_version). SSR compared on URL-canonical requested calculations; empty query is idle (not an error) and JSON-typed object/array inputs are REST/MCP-only.
• Verified scope v = C √(2 Δp / ρ), default C=1, plus pressure and C solves, + O3 mpmath tabulated velocity.
• Assurance Engineering
• Deferred Not venturi, not orifice, not Q=Av, and not two-station Bernoulli.

• release artifacts aligned PASS
• schema output required declared PASS
• schema valid input executes PASS
• engine success output validates schema PASS
• rest success payload validates schema PASS

Fingerprint sha256:df9f55006c57c30c05fbc60b55e0df94a7e08fea05cf66b60368c1408fc9b7c5

Input schema sha256:3d2b0288ca0d60d77024070ce92d740aab36efe992b69c32fa9ac1325e302f69 · Output schema sha256:4af43f43f88a42898996fac30d314a3e694e36882c3f34037c80a2dcc17f62b9 · 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

pitot-tube

Engine

pitot-tube

Engine build

2026-09-17

Evidence core

2026-09-17T06:50:47.586Z

Rendered

2026-11-10T05:18:41.936Z

Last reviewed

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Assumptions

• Incompressible pitot-static; v = C √(2 Δp / ρ); default C=1
• Δp is P0 − P_static at the probe
• Not compressible, not a venturi, not an orifice, not Q=Av, not two-station Bernoulli

Limitations

• Incompressible pitot-static: v = C √(2 Δp / ρ); default C=1
• Δp is dynamic pressure P0 − P_static; C is a probe coefficient, not orifice C_d
• Not a venturi, not an orifice, not Q=Av, not two-station Bernoulli