activity
20182026
most citedThe Pencil Code, a modular MPI code for partial differential equations and particles: multipurpose and multiuser-maintained

192 citations · 225 across the 8 of their papers we have counts for

collaborators

8 papers

physics.flu-dyn2026

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…

physics.flu-dyn2025

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…

physics.flu-dyn2025★ 2 cited

Experimental investigation relating free-surface features to sub-surface turbulence

Omer M. Babiker, Jørgen R. Aarnes, Ali Semati +4

Turbulent flows beneath a free surface play a central role in the Earth system, yet their coupling to observable surface features remains incompletely understood. Recent studies us…

physics.flu-dyn2024★ 9 cited

Vortex structures under dimples and scars in turbulent free-surface flows

Jørgen R. Aarnes, Omer Babiker, Anqing Xuan +2

Turbulence beneath a free surface leaves characteristic long-lived signatures on the surface, such as upwelling 'boils', near-circular 'dimples' and elongated 'scars', easily ident…

physics.flu-dyn2021

Thermophoresis and its effect on particle impaction on a cylinder for low and moderate Reynolds numbers

Nils Erland L. Haugen, Jonas Krüger, Jørgen R. Aarnes +2

The effect of thermophoresis on the impaction of particles on a cylinder is investigated for different particle sizes, particle conductivities, temperature gradients and for Reynol…

astro-ph.IM2020★ 192 cited

The Pencil Code, a modular MPI code for partial differential equations and particles: multipurpose and multiuser-maintained

A. Brandenburg, A. Johansen, P. A. Bourdin +34

The Pencil Code is a highly modular physics-oriented simulation code that can be adapted to a wide range of applications. It is primarily designed to solve partial differential equ…

physics.comp-ph2018★ 11 cited

Treatment of solid objects in the Pencil Code using an immersed boundary method and overset grids

Jørgen R. Aarnes, Tai Jin, Chaoli Mao +3

Two methods for solid body representation in flow simulations available in the Pencil Code are the immersed boundary method and overset grids. These methods are quite different in…

physics.flu-dyn2018★ 11 cited

High-order overset grid method for detecting particle impaction on a cylinder in a cross flow

J. R. Aarnes, N. E. L. Haugen, H. I. Andersson

An overset grid method was used to investigate the interaction between a particle-laden flow and a circular cylinder. The overset grid method was implemented in the Pencil Code , a…