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Structure of a swirling, recirculating coaxial free jet and its effect on particle motion
International Journal of Multiphase Flow, 2001 A developing coaxial swirling jet with sufficient annular swirl for flow recirculation to occur and the effect of the flow field on particle motion were investigated.
John K Eaton
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Cores of Swirling Particle Motion in Unsteady Flows
IEEE Transactions on Visualization and Computer Graphics, 2007In nature and in flow experiments particles form patterns of swirling motion in certain locations. Existing approaches identify these structures by considering the behavior of stream lines. However, in unsteady flows particle motion is described by path lines which generally gives different swirling patterns than stream lines.
Tino Weinkauf +3 more
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Application of Identification Method of Swirling Motion by Swirl Function
12th International Conference on Nuclear Engineering, Volume 2, 2004A method of identification and estimation of swirling motion in complicated flow and its application are presented. Classification of flow can be performed with velocity gradient tensor and its eigenvalue, and complex eigenvalue indicates that flow is swirling motion.
Katsuyuki Nakayama, Kenji Umeda
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Visualization System of Swirl Motion
12th International Conference on Nuclear Engineering, Volume 3, 2004An instrumentation of system composed of experimental device and numerical analysis is presented to visualize flow and identify swirling motion. Experiment is performed with transparent material and PIV (Particle Image Velocimetry) instrumentation, by which velocity vector field is obtained.
Katsuyuki Nakayama +4 more
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Swirling motion in a buoyant plume
Acta Mechanica, 1988The effect of including swirling motion in a buoyant plume arising from a point source of heat is considered. One case in which the circulation tends to zero outside of the plume has been studied previously; a second case in which the circulation tends to a finite constant is considered and yields closed form solutions when the Prandtl number is equal ...
T. G. Thomas, H. S. Takhar
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Swirling motion in a system of vibrated elongated particles
Physical Review E, 2007Large-scale collective motion emerging in a monolayer of vertically vibrated elongated particles is studied. The motion is characterized by recurring swirls, with the characteristic scale exceeding several times the size of an individual particle. Our experiments identified a small horizontal component of the oscillatory acceleration of the vibrating ...
Igor S, Aranson +2 more
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Attenuation of Swirling Motion of a Fire Whirl in a Vertical Shaft
Fire Technology, 2021Experiments on fire whirls generated by a gasoline pool fire in a vertical shaft were carried out. Vortex motions of swirling flame induced by buoyancy above the pool fires were observed to be more vigorous with increase in height. Upward flame motions were resulted due to increase in buoyancy. The phenomenon was described mathematically by solving the
H. Y. Hung +5 more
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Atomizers with the Swirl Motion Phenomenon
2018The liquid atomization is very important and widespread process in many branches of industry and in agriculture. The technology development, better construction solutions to improve atomization process for the specific application are searched for.
Sylwia Włodarczak +2 more
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Swirling Diffused Air Flow and Its Effect on Helical Fiber Motion in Swirl-Die Melt Blowing
Fibers and Polymers, 2021In melt blowing, high-velocity air impinges upon a polymer stream and attenuates it into micro-fibrous materials. The structure of the melt-blown die controls the airflow field and determines the process of fiber formation. This work focused on exploring the air swirling diffusion in a particular swirl-die melt blowing.
Bowen Zhu +3 more
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