de.mpg.escidoc.pubman.appbase.FacesBean
English
 
Help Guide Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Redistribution of Kinetic Energy in Turbulent Flows

Pumir, A., Xu, H., Boffetta, G., Falkovich, G., & Bodenschatz, E. (2014). Redistribution of Kinetic Energy in Turbulent Flows. Physical Review X, 4, 041006-1-041006-11. doi:10.1103/PhysRevX.4.041006.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-0EF9-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-0EFA-A
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Pumir, Alain1, Author              
Xu, Haitao1, Author              
Boffetta, Guido, Author
Falkovich, Gregory, Author
Bodenschatz, Eberhard1, Author              
Affiliations:
1Laboratory for Fluid Dynamics, Pattern Formation and Biocomplexity, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, escidoc:2063287              

Content

show
hide
Free keywords: -
 Abstract: In statistically homogeneous turbulent flows, pressure forces provide the main mechanism to redistribute kinetic energy among fluid elements, without net contribution to the overall energy budget. This holds true in both two-dimensional (2D) and three-dimensional (3D) flows, which show fundamentally different physics. As we demonstrate here, pressure forces act on fluid elements very differently in these two cases. We find in numerical simulations that in 3D pressure forces strongly accelerate the fastest fluid elements, and that in 2D this effect is absent. In 3D turbulence, our findings put forward a mechanism for a possibly singular buildup of energy, and thus may shed new light on the smoothness problem of the solution of the Navier-Stokes equation in 3D.

Details

show
hide
Language(s): eng - English
 Dates: 2014-10-13
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 702121
DOI: 10.1103/PhysRevX.4.041006
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review X
  Alternative Title : Phys. Rev. X
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 4 Sequence Number: - Start / End Page: 041006-1 - 041006-11 Identifier: -