soniumFans & propellers · 49
PC-fan CFD/adjoint contracts and propeller aeroacoustic studies: actuator loading, retarded-time identities, and release evidence. Method shown on hover; tolerance is the pass gate. back to QA
| Case | Tier | Reference | Gate |
|---|---|---|---|
pcfan.cfd-invariants.v1 | physics-gate | field shape/finite-value contract, relative mass balance, monotone fan-curve physics | mass-balance relative error <= 5e-2; strictly increasing airflow and pressure |
pcfan.mesh-convergence-reference.v1 | physics-gate | independent recomputation of published airflow/pressure relative changes and selected-solution identity | all-level converged status must equal 1; all nonlinear updates <=1e-7; final airflow/pressure changes <=0.05; metadata relative error <=2e-12 |
pcfan.actuator-loading-reference.v1 | physics-gate | independent volume-force torque integral and shaft-power = torque * angular speed | finite positive loading and shaft-power identity error <= 1e-10 |
propeller.capability-matrix.v1 | physics-gate | native application ownership boundary; no implicit host fallback | supported CPU source-surrogate cell resolves; every CUDA/Metal cell has a non-empty reason |
propeller.load-power.v1 | physics-gate | source power normalization and actuator-disk ideal hover bounds | acoustic power closure <= 1e-12; ideal/acoustic efficiency ratios within [0, 1] |
propeller.operating-envelope.v1 | physics-gate | independent momentum-theory induced velocity, advance-ratio, power, and efficiency recomputation | all reference relative errors <= 2e-12; non-negative power margin |
propeller.application-reference-correlation.v1 | physics-gate | independent PropellerSource harmonics plus published combined-design reduction prior | frequency/pressure/convention correlation <= 1e-12; reduction inside published prior |
propeller.gallery.v1 | physics-gate | manifest checksum validation, finite CSV row counts, and zero artifacts after rejected export | all CSV values finite; manifest checksums valid; rejected export writes zero artifacts |
propeller.rotating-dipole-reference.v1 | physics-gate | sin(theta) dipole envelope, outgoing exp(-ikr) and rotating exp(-iphi) phase, exact 2/3 sphere-average power factor | source/directivity/phase invariants <= 1e-12; 256x64 quadrature power-factor error <= 2e-5 |
propeller.multipoint-operating-envelope.v1 | physics-gate | independent rho*RPM^2 load scaling, ideal-gas sound speed, and annular actuator-disk momentum recomputation | load/induced relative errors <= 1e-12; axial frame error <= 1e-12; all admitted power margins non-negative |
pcfan.mass-balance-reference.v1 | physics-gate | independent inlet/outlet CFM recomputation converted with configured air density and nonlinear equation residual reassembly at the returned field | converged status must equal 1; nonlinear update <=1e-7; independently assembled true residual <=1e-6; residual-state identity error <=1e-12; magnitude and signed relative mass imbalance <=0.01; positi |
pcfan.measured-correlation-contract.v1 | reference-only | sorted-RPM topology, finite observations, RMSE and worst-case error budgets | airflow RMSE <= 2 CFM; pressure RMSE <= 20 Pa; acoustic RMSE <= 3 dB |
pcfan.predicted-correlation-pipeline-reference.v1 | reference-only | finite provenance-labelled predictions, sorted RPM topology, airflow/pressure/acoustic RMSE admission | default airflow, pressure, and acoustic correlation budgets |
pcfan.structural-fatigue-reference.v1 | reference-only | alternating-stress margin, design-life scaling, and invalid-configuration rejection | finite positive allowable stress; non-negative nominal fatigue margin |
pcfan.fidelity-promotion-reference.v1 | reference-only | candidate topology, finite metrics, objective error, rank preservation, feasibility parity, and best-candidate movement | objective relative error <= 0.10; rank correlation >= 0.90; no feasibility mismatch or false promotion |
pcfan.measured-product-evidence-reference.v1 | reference-only | synthetic deterministic schema fixture only; no product measurement claim | exact schema/provenance admission; acoustic column may be explicitly absent |
pcfan.measured-product-validation-reference.v1 | reference-only | synthetic deterministic fixture only; no external product evidence claim | all configured RMSE budgets pass; circular measured/synthetic prediction provenance rejected |
pcfan.topology-chain-transfer-reference.v1 | reference-only | analytic deterministic state-transfer fixture; target operators explicitly require reassembly | two complete transitions; all fields finite; no topology-dependent operator reuse |
pcfan.resolved-adjoint-reference.v1 | reference-only | synthetic deterministic linearization only; CFD tangent publication remains required | adjoint residual <= 1e-10 for the deterministic fixture |
pcfan.turbulent-transient-adjoint-reference.v1 | reference-only | synthetic deterministic 1x1x1 CPU transported trajectory; no production solve | finite residual and complete design-gradient dimension |
pcfan.accelerator-parity-reference.v1 | reference-only | synthetic deterministic fixture only; hardware execution is required for accelerator evidence | configurable backend-parity relative and residual budgets; host fallback rejected |
pcfan.structural-calibration-reference.v1 | reference-only | synthetic deterministic fixture only; no product-measurement claim | configurable per-observable RMSE and maximum-relative-error budgets |
pcfan.cfd-independence-reference.v1 | physics-gate | strict level ordering, finite observables, airflow/pressure/loading agreement | all required axes pass with relative observable changes <= 5e-2 |
pcfan.operating-envelope-reference.v1 | physics-gate | independent monotonic airflow and pressure-rise trend plus finite thermal/modal/stress margins | airflow and pressure ratios > 1; thermal/structural/modal margins >= 0 |
pcfan.operating-envelope-optimization-reference.v1 | reference-only | finite airflow/pressure objective, typed validation, deterministic optimizer result | finite objective and non-zero optimizer evaluation count |
pcfan.reduced-adjoint-reference.v1 | reference-only | finite primal residual, finite non-zero pressure multipliers, objective-gradient parity | primal residual <= 1e-10; focused parity gate <= 5e-3 |
pcfan.gallery-image-contract.v1 | reference-only | PNG signature/chunks, decoded pixels, nonblank variation, fixed dimensions, manifest checksums | exactly 1920x1080; nonblank decoded pixels; nonzero PNG size |
propeller.dynamic-stall-reference.v1 | physics-gate | delayed separation onset and recovery state identities | onset state below target; recovery state decreases |
propeller.duct-shroud-reference.v1 | physics-gate | continuity, Darcy/minor-loss, contraction acceleration and pressure identities | continuity residual <= 1e-12 kg/s |
propeller.body-fitted-meridional-flow-reference.v1 | physics-gate | finite converged body-fitted velocity/pressure state with residual and boundary diagnostics | finite converged state; residual <= 1e-6 |
propeller.body-fitted-turbulence-reference.v1 | physics-gate | finite converged turbulent state, effective-to-molecular viscosity ratio, and velocity diagnostics | finite converged state; residual <= 1e-6; effective viscosity ratio > 1 |
propeller.body-fitted-rotating-wall-reference.v1 | physics-gate | finite converged state and exact annular-Couette centrifugal acceleration source | finite converged state; residual <= 1e-6; mid-annulus acceleration > 0 |
propeller.body-fitted-swirl-transport-reference.v1 | physics-gate | finite transported tangential field with cylindrical diffusion, meridional advection, and 2pi*r weighting | finite state; relative linear residual <= 1e-6 |
propeller.body-fitted-coupled-swirl-transport-reference.v1 | physics-gate | transported tangential velocity feeds rho*u_theta^2/r into the next meridional solve | finite state; outer residual <= 1e-7 |
propeller.axisymmetric-meridional-flow-reference.v1 | physics-gate | finite weighted velocity/pressure state with radial viscous geometry, divergence, inlet/outlet flux diagnostics | finite converged state; relative flux mismatch <= 1e-6 |
propeller.axisymmetric-weighted-rotating-wall-reference.v1 | physics-gate | annular area/flow identity, mass-flow closure, and torque-dissipation identity | finite weighted diagnostics; rigid-body rotation has zero torque and dissipation |
propeller.fwh-reference.v1 | physics-gate | free-field monopole/dipole source identities with outgoing retarded phase | monopole/dipole identity errors <= 1e-12 Pa |
propeller.viscous-core-reference.v1 | physics-gate | analytic core-radius diffusion and finite-radius tangential velocity | diffusion radius identity error <= 1e-12 m |
propeller.vortex-lattice-reference.v1 | physics-gate | independent normal-velocity closure and finite Kutta--Joukowski load ledger | maximum normal residual <= 1e-7 m/s; all loads finite |
propeller.measured-calibration-reference.v1 | physics-gate | independent least-squares affine gain/offset recovery | coefficient recovery <= 1e-12; finite residual and admission gates |
propeller.fidelity-promotion-reference.v1 | physics-gate | independent preserved-order and Kendall-style rank identities | pairwise agreement = 1; rank correlation = 1 |
propeller.measured-dataset-provenance.v1 | physics-gate | exact JSON round-trip and canonical content-integrity identity | digest round trip exact; finite calibration and metadata admission |
propeller.measured-dataset-attestation.v1 | physics-gate | exact signed payload verification and JSON round-trip | signature and canonical dataset round-trip verify exactly |
propeller.moving-fwh-reference.v1 | physics-gate | retarded-time, Doppler-factor, and reduced far-field source identities | retarded time <= 1e-9 s; Doppler/pressure identities close |
propeller.mean-flow-fwh-reference.v1 | physics-gate | convected travel-time identity, relative-source Doppler Jacobian, reduced far-field terms | retarded time <= 1e-9 s; convected-ray diagnostics finite |
propeller.measured-uncertainty-reference.v1 | physics-gate | bounded affine calibration residual with independent uncertainty envelope | finite positive uncertainty; configured z-score, coverage, and reduced-chi-squared gates |
propeller.mesh-state-transfer-reference.v1 | physics-gate | constant-state preservation, deterministic geometry interpolation, blade identity isolation, bounded distance/work | finite transfer; nearest-source distance within configured gate; no topology or work-budget violation |
propeller.panel-response-refinement-reference.v1 | physics-gate | finite response metrics, normalized adjacent changes, and finest-level convergence gate | final maximum normalized response change within relative_tolerance |
propeller.farassat-fwh-reference.v1 | physics-gate | stationary Farassat 1A thickness/loading identity and Doppler diagnostics | stationary identity error <= 1e-12 Pa; finite positive Doppler |