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arXiv · 2609.22011

Ekman Boundary Layers Under Transport Noise

Daniel Goodair·Szymon Sobczak
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Abstract

We consider a 3D rotating Navier-Stokes equation with transport-stretching noise, posed between two horizontal plates, and study the joint limit of vanishing vertical viscosity and rapid rotation. Our driving noise depends only on the horizontal coordinates and its vertical component vanishes with the viscosity. Provided that the initial data is purely horizontal, we construct martingale weak solutions which converge in $L^2_ωL^\infty_tL^2_x$ to the layered strong solution of a 2D stochastic Navier-Stokes equation with damping. The damping coefficient is dependent on the limit of the ratio between vertical viscosity and inverse rotation rate.

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Daniel Goodair, Szymon Sobczak. 2026-09-18. Ekman Boundary Layers Under Transport Noise. https://arxiv.org/abs/2609.22011

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