Modeling of uniform rotation effects on homogeneous decaying turbulence
Item
Title (Dublin Core)
en-US
Modeling of uniform rotation effects on homogeneous decaying turbulence
Description (Dublin Core)
en-US
Hydrodynamic turbulence under rotation is often encountered in geophysics and astrophysics, inspiring extensive research into the effects of rotation on turbulence. Amongst numerous scenarios in those studies, the rotating homogeneous decaying turbulence stands out as a canonical case study of turbulence theory. I report a physical 2nd-order closure model to simulate homogeneous decaying turbulence under uniform rotation, which corrects a previous solution. The rotation effects are functions of the rotation rate Ω, the parallel component of the Reynolds stress tensor, and the integral length scale along the rotation axis, together with its isotropic value. The results demonstrate that the new remedying model effectively reproduces theoretical predictions, aligning closely with data from direct numerical simulations and outperforming old physical models from the same class.
Subject (Dublin Core)
en-US
rotating turbulence & rotation effects
en-US
turbulence modelization and simulation
en-US
geophysical & astrophysical flows
Publisher (Dublin Core)
en-US
GeophysicsOnline.org
Date (Dublin Core)
2024-12-23
Type (Dublin Core)
en-US
Peer-reviewed Article
Format (Dublin Core)
en-US
application/pdf
Identifier (Dublin Core)
https://n2t.net/ark:/88439/x071373
Source (Dublin Core)
en-US
Journal of Geophysics; Vol 66 No 1 (2024): 60-66
2643-2986
2643-9271
Relation (Dublin Core)
Creator (Dublin Core)
en-US
Marzougui, H.
