Journal ArticleDOI
Combustion in swirling flows: A review
Nicholas Syred,János M. Beér +1 more
TLDR
The main effects of swirl are to improve flame stability as a result of the formation of toroidal recirculation zones and to reduce combustion lengths by producing high rates of entrainment of the ambient fluid and fast mixing as discussed by the authors.About:
This article is published in Combustion and Flame.The article was published on 1974-10-01. It has received 837 citations till now. The article focuses on the topics: Combustion chamber & Combustor.read more
Citations
More filters
Proceedings ArticleDOI
Effect of nonaxisymmetric forcing on a swirling jet with vortex breakdown
TL;DR: In this paper, nonaxisymmetric forcing was applied to the breakdown flow field of a strongly swirling jet, which led to excitation of the helical mode at any desired frequency.
Journal ArticleDOI
Analysis on the patterns of precessing frequency characteristics and energy separation processes in a Ranque–Hilsch vortex tube
TL;DR: In this article, the authors analyzed the precessing frequency characteristics of a vortex tube with a diameter of 30mm and the energy separation process and performance under increasing inlet pressure, and the pattern of large-scale vortices and energy separation of the vortex tube were determined.
Journal ArticleDOI
The effect of variable fuel composition on a swirl-stabilised producer gas combustor
Jonathan Lewis,Richard Marsh,Yura Alexander Sevcenco,Steven Morris,Anthony John Griffiths,Philip John Bowen +5 more
TL;DR: In this article, the viability of producing thermal energy on an industrial scale was proved via the swirl-stabilised combustion of forementioned producer gas in a 1.5 MW rated swirl burner, directly attached to a proprietary gasification plant.
Journal ArticleDOI
Burner geometry effect on coherent structures and acoustics of a confined swirling partially premixed methane flame
Mahmoud M.A. Ahmed,Madjid Birouk +1 more
TL;DR: In this article, the effect of the mixing tube length and fuel nozzle geometry on coherent structures and acoustics characteristics of partially premixed swirling methane flame is experimentally studied, and the results showed that the mixing length is not the only parameter to mitigate combustion instabilities.
Journal ArticleDOI
Applicability of the Peclet number approach to blow-off and flashback limits of common steelworks process gases
TL;DR: In this paper, the authors examined the blow-off and flashback potential of common steelworks process gases (including one which contains hydrogen) in a compact, premixed swirl burner in swirl number regimes representative of those found in practical systems.
References
More filters
Journal ArticleDOI
Theory of the vortex breakdown phenomenon
TL;DR: In this paper, it is shown that vortex breakdown is not a manifestation of instability or of any other effect indicated by study of infinitesimal disturbances alone, but instead a finite transition between two dynamically conjugate states of axisymmetric flow, analogous to the hydraulic jump in open-channel flow.
Journal ArticleDOI
On stationary and travelling vortex breakdowns
TL;DR: In this article, the authors describe some experiments in swirling flows in a diverging cylindrical tube in which various types of vortex breakdowns were observed, viz. mild (double helix) breakdown, spiral breakdown, and axisymmetric breakdown.
The bursting of leading-edge vortices - some observations and discussion of the phenomenon.
N. C. Lambourne,D. W. Bryer +1 more
Journal ArticleDOI
Experimental Investigation of Swirling Vortex Motion in Jets
N. A. Chigier,A. Chervinsky +1 more
Journal ArticleDOI
Some observations of the vortex breakdown phenomenon
TL;DR: In this article, a cylindrical vortex, formed in a long tube, was used to study the "vortex breakdown" that has been previously reported in investigations of the flow over slender delta wings.