| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 656250 | International Journal of Heat and Fluid Flow | 2006 | 13 Pages |
Abstract
The paper presents large eddy simulation of unconfined swirling jets. In the first part, an unconfined annular jet is investigated for swirl numbers ranging from 0 to 1.2. The impact of the swirl on the mean flow and the precessing vortex structures in this flow is analysed. In the second part of the paper, a co-annular pilot jet is introduced near the axis. The investigations show that the additional swirl near the axis has a stronger effect than the pilot jet itself, leading to an almost entire removal of coherent structures.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Manuel García-Villalba, Jochen Fröhlich,