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
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Effects of swirl on flow and mixing of acoustically excited swirling double-concentric jets
TL;DR: In this article, the influence of a swirl on the flow and mixing characteristics of double-concentric jets were studied experimentally, and the results showed that one vortex ring was induced during each excitation period.
Journal ArticleDOI
An experimental study of fuel–air mixing section on unstable combustion in a dump combustor
TL;DR: In this paper, the effect of various fuel-air mixing section geometries on the unstable combustion was investigated by using an optically accessible quartz-type combustor to characterize the flame structure and heat release oscillation with the use of a high speed ICCD camera.
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Effect of the Reynolds number and the basic design parameters on the isothermal flow field of low-swirl combustors
TL;DR: In this paper, the authors compared velocity measurements reported in the open literature on combustors of similar geometry and swirl number with axial low-swirling flows generated by axial swirlers and aimed at providing a comprehensive insight of the flow field.
Journal ArticleDOI
Numerical simulation of the flow streams behavior in a self-regenerative crucible furnace
TL;DR: In this paper, a three dimensional numerical simulation with experimental validation of a gas-fired self-regenerative crucible furnace is presented, where different combustion models are used to assess their effects on the numerical results.
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On the highly swirling flow through a confined bluff-body
TL;DR: In this article, the influence of the swirl device was included in defining the inflow conditions for LES simulations, and mean velocity profiles and turbulence statistics were used to test results.
References
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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.
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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
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Experimental Investigation of Swirling Vortex Motion in Jets
N. A. Chigier,A. Chervinsky +1 more
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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.