128 citations · 1.2k across the 68 of their papers we have counts for
68 papers
On the spatial statistics of free-surface turbulence and the complementarity of 'dimples' and 'scars'
Daniel R. Kjellevold, Jørgen R. Aarnes, Omer M. Babiker +2
The air--water interface governs the exchange of heat and gas between natural water bodies and their surrounding environment. Turbulence beneath the free surface imprints character…
Sub-surface turbulence and free-surface features
Amélie Ferran, Ali Semati, Anaïs Rouaud +2
Many turbulent flows encountered in nature -- seas, oceans and rivers -- are bounded by a deformable free surface. A question that remained to be fully explored is to what extent t…
Exact dispersion relation for linear surface waves on arbitrary vertical shear
Kjell S. Heinrich, Simen Å. Ellingsen
We derive the formal solution to the dispersion relation for linear surface waves on a horizontal mean current with arbitrary vertical dependence. The problem is cast in a Green's…
Simultaneous free-surface profilometry and subsurface velocimetry with fringe projection and PIV
Ali Semati, Adharsh Shankaran, Benjamin K. Smeltzer +3
This work presents a novel combination of two well-established techniques: fringe projection profilometry (FPP) and particle image velocimetry (PIV). Despite seemingly conflicting…
Rediscovering shallow water equations from experimental data
Kjell S. Heinrich, Douglas S. Seth, Mats Ehrnstrom +1
New data-driven methods have advanced the discovery of governing equations from observations, enabling parsimonious models for complex systems. Here, we 'rediscover' a shallow-wate…
Mapping surface height dynamics to subsurface flow physics in free-surface turbulent flow using a shallow recurrent decoder
Kristoffer S. Moen, Jørgen R. Aarnes, Simen Å. Ellingsen +1
Near-surface turbulent flows beneath a free surface are reconstructed from sparse measurements of the surface height variation, by a neural network algorithm known as the SHallow R…