Stability Energy Rhs Convergence #
Supporting estimates for the Navier–Stokes development.
theorem
CKN.stability_energy_rhs_tendsto
{Ω Ω' : Set Foundation.Parabolic.Vec3}
{I J : Set ℝ}
{q : ℝ}
(u : ℕ → Foundation.Parabolic.ParabolicPoint → Foundation.Parabolic.Vec3)
(Du : ℕ → Foundation.Parabolic.ParabolicPoint → Fin 3 → Foundation.Parabolic.Vec3)
(p : ℕ → Foundation.Parabolic.ParabolicPoint → ℝ)
(v : Foundation.Parabolic.ParabolicPoint → Foundation.Parabolic.Vec3)
(Dv : Foundation.Parabolic.ParabolicPoint → Fin 3 → Foundation.Parabolic.Vec3)
(r : Foundation.Parabolic.ParabolicPoint → ℝ)
(hsol : ∀ (n : ℕ), IsSuitableWeakSolution Ω I q (u n) (Du n) (p n) 0)
(hdata : IsSuitableWeakSolutionData Ω I q v Dv r 0)
(hbox : localBox Ω I Ω' J)
(huConv :
Filter.Tendsto (fun (n : ℕ) => MeasureTheory.eLpNorm (u n - v) 3 (MeasureTheory.volume.restrict (spaceTimeSet Ω' J)))
Filter.atTop (nhds 0))
(hpConv :
Filter.Tendsto
(fun (n : ℕ) => MeasureTheory.eLpNorm (p n - r) (3 / 2) (MeasureTheory.volume.restrict (spaceTimeSet Ω' J)))
Filter.atTop (nhds 0))
(ψ : Foundation.Parabolic.Vec3 × ℝ → ℝ)
(hψ : ψ ∈ spaceTimeTestFunction Ω I)
:
Filter.Tendsto
(fun (n : ℕ) =>
∫ (z : Foundation.Parabolic.ParabolicPoint) in spaceTimeSet Ω' J, Foundation.Parabolic.vec3EuclideanNorm (u n z) ^ 2 * (timePartial ψ z + ∑ i : Fin 3, spatialSecondPartial ψ i i z) + (Foundation.Parabolic.vec3EuclideanNorm (u n z) ^ 2 + 2 * p n z) * ∑ i : Fin 3, u n z i * spatialPartial ψ i z + (2 * ∑ i : Fin 3, 0 z i * u n z i) * ψ z)
Filter.atTop
(nhds
(∫ (z : Foundation.Parabolic.ParabolicPoint) in spaceTimeSet Ω' J, Foundation.Parabolic.vec3EuclideanNorm (v z) ^ 2 * (timePartial ψ z + ∑ i : Fin 3, spatialSecondPartial ψ i i z) + (Foundation.Parabolic.vec3EuclideanNorm (v z) ^ 2 + 2 * r z) * ∑ i : Fin 3, v z i * spatialPartial ψ i z + (2 * ∑ i : Fin 3, 0 z i * v z i) * ψ z))
The right side of the zero-force local energy inequality converges on each local box under the strong velocity and pressure limits.