Actual initial stress activation #
The activation integrates damped genuine reference derivatives. Error factors are constructed from the flat primitive integral, never supplied as input.
Log domain, bundling carrier, isOpen, scale_mem.
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Activation, given by (1 - κ) * OutgoingSchedule.sigma (y / T).
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- NavierStokes.StressActivation.activation T κ y = (1 - κ) * NavierStokes.OutgoingSchedule.sigma (y / T)
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Weighted field, defined pointwise by activation T κ p.1 * B p.
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- NavierStokes.StressActivation.weightedField T κ B p = NavierStokes.StressActivation.activation T κ p.1 * B p
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Weighted primitive, given by primitive (weightedField T κ B).
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Direct integration of the reference derivative times the prescribed damping.
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A local-parameter version of the proved flat factor theorem #
Step denominator, given by FlatCutoff.edge 1 (y / T) + FlatCutoff.edge 1 (1 - y / T).
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- NavierStokes.StressActivation.stepDenominator T y = NavierStokes.FlatCutoff.edge 1 (y / T) + NavierStokes.FlatCutoff.edge 1 (1 - y / T)
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Flat coefficient, given by B (q.2, q.1) / stepDenominator T q.2.
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- NavierStokes.StressActivation.flatCoefficient T B q = B (q.2, q.1) / NavierStokes.StressActivation.stepDenominator T q.2
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Division by y e_a is implemented by a smooth transformed integral.
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The basic quantitative estimate is uniform as κ tends to zero and in
the ramp length: its constant is only a bound for the reference coefficient.
Reference angular, defined pointwise by Real.exp (L p).
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Activated angular, defined pointwise by Real.exp (controlled T κ L p).
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Reference P1, defined pointwise by -2 * radialPartial L p.
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Reference ns, defined pointwise by -2 * radialPartial U p / radius X0 p.1.
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The first equation in (18), for the logarithm of the actual positive field.
The second equation in (18), with n_s obtained from the reference field.
Relative factor, given by -primitiveFactor T (radialPartial L) p * meanExp (-weightedPrimitive T κ (radialPartial L) p).
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Actual parameter jets, uniformly including κ=0 #
Family point: an abbreviation for (ℝ × ℝ) × ℝ.
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Relative family, given by relativeFactor T q.1.1 L (q.1.2, q.2).
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- NavierStokes.StressActivation.relativeFamily T L q = NavierStokes.StressActivation.relativeFactor T q.1.1 L (q.1.2, q.2)
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Difference family, given by -primitiveFactor T (radialPartial F) (q.1.2, q.2).
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Compactness bounds the genuine η derivatives of a jointly smooth family. In particular the compact κ range contains zero; inverse powers of κ cannot enter.
Flat integrals of smoothly parameterized families #
Family flat coefficient, given by B ((q.1.1, q.2), q.1.2) / stepDenominator T q.2.
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- NavierStokes.StressActivation.familyFlatCoefficient T B q = B ((q.1.1, q.2), q.1.2) / NavierStokes.StressActivation.stepDenominator T q.2
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Family primitive factor, given by q.1.2 ^ 2 * stepDenominator T q.1.2 * ParametricFlatFactor.factor (T ^ 2) 0 (familyFlatCoefficient T B) ((q.1.1, q.2), q.1.2).
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The five actual pressure and moment histories #
History row data for stress activation.
- mass : HistoryRow
- angular : HistoryRow
- transport : HistoryRow
- energy : HistoryRow
- pressure : HistoryRow
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These are the integrands used by ProfileHistories.Profiles.
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- NavierStokes.StressActivation.radialDensity NavierStokes.StressActivation.HistoryRow.mass x✝² x✝¹ x✝ = x✝
- NavierStokes.StressActivation.radialDensity NavierStokes.StressActivation.HistoryRow.angular x✝² x✝¹ x✝ = 2 * x✝² * x✝¹
- NavierStokes.StressActivation.radialDensity NavierStokes.StressActivation.HistoryRow.transport x✝² x✝¹ x✝ = x✝ * (2 * x✝² * x✝¹)
- NavierStokes.StressActivation.radialDensity NavierStokes.StressActivation.HistoryRow.energy x✝² x✝¹ x✝ = x✝ ^ 2 - x✝² * x✝¹ ^ 2
- NavierStokes.StressActivation.radialDensity NavierStokes.StressActivation.HistoryRow.pressure x✝² x✝¹ x✝ = x✝¹ ^ 2
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The Jacobian X converts the physical radial histories to log time.
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The initial row values are shared; every subsequent value is recomputed.
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- NavierStokes.StressActivation.logHistory X0 initial f U r p = initial r p.2 + NavierStokes.ProfileHistories.primitive (NavierStokes.StressActivation.logDensity X0 f U r) p
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Field family, given by F (q.1.2, q.2).
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- NavierStokes.StressActivation.fieldFamily F q = F (q.1.2, q.2)
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Controlled family, given by controlled T q.1.1 F (q.1.2, q.2).
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- NavierStokes.StressActivation.controlledFamily T F q = NavierStokes.StressActivation.controlled T q.1.1 F (q.1.2, q.2)
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Angular family, given by activatedAngular T q.1.1 L (q.1.2, q.2).
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- NavierStokes.StressActivation.angularFamily T L q = NavierStokes.StressActivation.activatedAngular T q.1.1 L (q.1.2, q.2)
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Angular difference family, given by fieldFamily (referenceAngular L) q * relativeFamily T L q.
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Density difference family as an element of ℝ.
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History integrand family, given by q.1.2 * densityDifferenceFamily T X0 L U r q.
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- NavierStokes.StressActivation.historyIntegrandFamily T X0 L U r q = q.1.2 * NavierStokes.StressActivation.densityDifferenceFamily T X0 L U r q
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History difference family, given by familyPrimitiveFactor T (historyIntegrandFamily T X0 L U r).
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Identification with the physical ProfileHistories integrals #
Profile density, defined pointwise by radialDensity r p.1 (P.f p) (P.U p).
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- NavierStokes.StressActivation.profileDensity P r p = NavierStokes.StressActivation.radialDensity r p.1 (P.f p) (P.U p)
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Profile history as an element of HistoryRow → Field | .mass => P.M | .angular => P.I | .transport => P.J | .energy => P.S | .pressure => P.pressure.
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- NavierStokes.StressActivation.profileHistory P NavierStokes.StressActivation.HistoryRow.mass = P.M
- NavierStokes.StressActivation.profileHistory P NavierStokes.StressActivation.HistoryRow.angular = P.I
- NavierStokes.StressActivation.profileHistory P NavierStokes.StressActivation.HistoryRow.transport = P.J
- NavierStokes.StressActivation.profileHistory P NavierStokes.StressActivation.HistoryRow.energy = P.S
- NavierStokes.StressActivation.profileHistory P NavierStokes.StressActivation.HistoryRow.pressure = P.pressure
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Profile initial as an element of HistoryRow → ℝ → ℝ | .pressure => P.pressure0 | _ => fun _ => 0.
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Log pullback, defined pointwise by F (radius X0 p.1, p.2).
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- NavierStokes.StressActivation.logPullback X0 F p = F (NavierStokes.StressActivation.radius X0 p.1, p.2)
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The change to log radius is proved by differentiating the actual physical history. This includes the pressure constant and all four moment histories.
Attaching the actual ramp to the proved natural reference path #
Ref log, given by ReferencePath.continuation δ N.logF.
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Ref axial, given by ReferencePath.continuation δ N.logU.
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F, defined pointwise by if p.1 ≤ N.endpoint then N.refF δ p else activatedAngular T κ (refLog N δ) (N.logTime p.1, p.2).
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U, defined pointwise by if p.1 ≤ N.endpoint then N.refU δ p else controlled T κ (refAxial N δ) (N.logTime p.1, p.2).
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These are the actual radial pressure and lag inputs, recomputed from ACT.
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The five physical histories inherit the constructed smooth factor.
Exact shear identities and cancellation of the common damping #
Actual P1, given by -2 * deriv (fun y => Real.log (activatedAngular T κ L (y, p.2))) p.1.
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- NavierStokes.StressActivation.actualP1 T κ L p = -2 * deriv (fun (y : ℝ) => Real.log (NavierStokes.StressActivation.activatedAngular T κ L (y, p.2))) p.1
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Velocity, given by Real.sqrt (2 * radius X0 p.1) * f p.
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- NavierStokes.StressActivation.velocity X0 f p = √(2 * NavierStokes.StressActivation.radius X0 p.1) * f p
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Reference P2, given by -2 * radialPartial U p / velocity X0 (referenceAngular L) p.
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Actual P2, given by -2 * deriv (fun y => controlled T κ U (y, p.2)) p.1 / velocity X0 (activatedAngular T κ L) p.
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Shear slope, given by actualP2 T κ X0 L U p / actualP1 T κ L p.
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- NavierStokes.StressActivation.shearSlope T κ X0 L U p = NavierStokes.StressActivation.actualP2 T κ X0 L U p / NavierStokes.StressActivation.actualP1 T κ L p
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Shear size, given by actualP1 T κ L p + actualP2 T κ X0 L U p ^ 2 / actualP1 T κ L p.
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Reference size, given by referenceP1 L p + referenceP2 X0 L U p ^ 2 / referenceP1 L p.
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The reference shear ratio contains no inverse power of the damping.