Journal article
Vortex merging and spectral cascade in two-dimensional flows
In
Physics of Fluids
—
1996, Volume 8, Issue 9, pp. 2263-2265
Abstract
The merging of two identical vortices is studied numerically using a spectral code. It is noted that the enstrophy cascade is most active on the distorted vortex boundaries, with a Kolmogorov-like spectrum E(k) approximate to k(-alpha), alpha less than or equal to 4, developed at high wave numbers. The inverse energy cascade is completed when the vortices merge into one of larger size. (C) 1996 American Institute of Physics.
| Language: | English |
|---|---|
| Publisher: | American Institute of Physics |
| Year: | 1996 |
| Pages: | 2263-2265 |
| ISSN: | 10897666 and 10706631 |
| Types: | Journal article |
| DOI: | 10.1063/1.869027 |
| ORCIDs: | Nielsen, A.H. and Juul Rasmussen, J. |
Other keywords
ENERGY TRANSFER TURBULENT FLOW TWO−DIMENSIONAL CALCULATIONS VORTEX FLOW VORTICES
