| Issue |
EPL
Volume 79, Number 1, July 2007
|
|
|---|---|---|
| Article Number | 14002 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/79/14002 | |
| Published online | 06 June 2007 | |
Signatures of two-dimensionalisation of 3D turbulence in the presence of rotation
S.N. Bose National Centre for Basic Sciences, Theoretical physics department, Sector-III, Block - JD, Salt Lake, Kolkata-700 098 India
Received:
5
February
2007
Accepted:
15
May
2007
A reason has been given for the inverse energy cascade in the two-dimensionalised rapidly rotating 3D incompressible turbulence. For such system, the literature shows a possibility for the wave number exponent in the energy spectrum's relation to lie between -2 and -3. We argue the existence of a stricter range of -2 to 
for the exponent in the case of rapidly rotating turbulence which is in accordance with the recent experiments. Also, a derivation for the two-point third-order structure function has been provided helping one to argue that even with slow rotation one gets, though dominated, a spectrum with the exponent -2.87, thereby hinting at the initiation of the two-dimensionalisation effect with rotation.
PACS: 47.27.-i – Turbulent flows / 47.27.Jv – High-Reynolds-number turbulence / 47.32.Ef – Rotating and swirling flows
© Europhysics Letters Association, 2007
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.