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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Journal ArticleDOI
The Effect of the Precessing Vortex Core on Combustion in a Swirl Burner
TL;DR: In this article, the authors examined the fundamental characteristics of a 2 MW swirl burner/furnace system and in particular the excitation of the Precessing Vortex Core (PVC) in diffusion controlled combustion with, natural gas being introduced axially on the axis of symmetry.
Journal ArticleDOI
Effects of the inlet angle on the collection efficiency of a cyclone with helical-roof inlet
TL;DR: In this article, the effects of inlet angle on the collection efficiency of a cyclone with helical-roof inlet have been computationally investigated using large eddy simulations with the dynamic Smagorinsky-Lilly s...
Proceedings ArticleDOI
The structure of a swirl-stabilized reacting spray issued from an axial swirler
Journal ArticleDOI
Development of a Lean Premixed Low-Swirl Burner for Low NOx Practical Applications
D.T. Yegian,Robert K. Cheng +1 more
TL;DR: In this paper, the performance of a premixed low-swirl burner (LSB) in configurations that simulate commercial heating appliances has been evaluated and the feasibility of using the LSB as a low NO{sub x} commercial burner has been verified in a laboratory test station that simulates the operation of a water heater.
Proceedings ArticleDOI
Mean Flowfields in Axisymmetric Combustor Geometries with Swirl
TL;DR: In this paper, six flowfield configurations with sidewall angles of 90 and 45 degrees and swirl vane angles of 0, 45, and 70 degrees were investigated with five-hole pitot probe pressure measurements.
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.