Documentation

LeanPool.NavierStokesAndEuler.NavierStokes.EntranceAlignedBase

Related estimates used together by the same construction modules.

A slow base whose cutoffs are aligned with the natural entrance #

The retained local hierarchy extends strictly beyond the natural entrance. Its cutoff transition lies inside the proved initial true-cone collar and before the finite modulation begins. The same finite base, local hierarchy, and five-row exterior repair are used throughout.

From the actual profile cone to the primary spectral cone #

The signed axial shear in the profile cone is c = -2 X U_X / E. Consequently the physical shear vector is F * (-a,-c), while the leading stress is a positive multiple of (p₁-a,p₂-c). The results below derive the primary spectral and target cones from these identities.

Actual summed base fields in normalized band charts #

All coordinate derivatives are taken at strictly positive backward time. The constants remain uniform as that time approaches zero while the normalized positive branch stays in a fixed annulus.

The actual profile histories and stresses #

Genuine radial derivatives of the normalized leading fields #

Uniform choices on a compact reference set #