3 papers
physics.flu-dyn2026
Optimal velocity fields for instantaneous magnetic field growth
Nicholas J. Moore, Stefan G. Llewellyn Smith
We consider a variant of the kinematic dynamo problem. Rather than prescribing a velocity field and searching for high-growth magnetic fields via an eigenvalue problem, we treat th…
physics.flu-dyn2026
On the fundamental solution for viscous internal waves and Brinkman flows. Part 1. Two dimensions
Saikumar Bheemarasetty, Stefan G. Llewellyn Smith
We obtain the viscous and diffusive fundamental solution for monochromatic internal waves in a uniformly stratified medium and for anisotropic Brinkman flow. These solutions take t…
physics.flu-dyn2025
Stability of SQG Kolmogorov Flow
Mac Lee, Stefan Llewellyn Smith
Stability analysis is performed on surface quasigeostrophic systems subjected to a Kolmogorov-type "shear force" on the boundaries using linear and nonlinear approaches. For a SQG…