Related Experiment Video
Updated: Oct 7, 2025

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
Published on: February 22, 2018
Astrophysical turbulence modeling
Axel Brandenburg1,2, Åke Nordlund3
1NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.
Abstract:
The role of turbulence in various astrophysical settings is reviewed. Among the differences to laboratory and atmospheric turbulence we highlight the ubiquitous presence of magnetic fields that are generally produced and maintained by dynamo action. The extreme temperature and density contrasts and stratifications are emphasized in connection with turbulence in the interstellar medium and in stars with outer convection zones, respectively. In many cases turbulence plays an essential role in facilitating enhanced transport of mass, momentum, energy and magnetic fields in terms of the corresponding coarse-grained mean fields. Those transport properties are usually strongly modified by anisotropies and often completely new effects emerge in such a description that have no correspondence in terms of the original (non-coarse-grained) fields.
Related Concept Videos
Turbulent Flow
Laminar and Turbulent Flow
Turbulent Flow: Problem Solving
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
Typical Model Studies
Magnetostatic Boundary Conditions
Pressure Variation in a Fluid at Rest
When measuring pressure at two different levels within the fluid, the difference in...

