Granular dynamics in a swirled annulus
WebMay 28, 2010 · Abstract. In a swirled circular container, granular particles can change their sense of rotation when the packing density is increased, exhibiting a transition from … WebJan 1, 2005 · Swirling flows may affect flame dynamics in two aspects. First, large-scale unsteady motions arising from shear-layer instability and vortex breakdown, as well as precession of vortex core (PVC), may couple resonantly with acoustic waves in the combustor, and subsequently cause combustion instabilities.
Granular dynamics in a swirled annulus
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WebToggle navigation. Quicklinks. Search this site; Contact; Sites and opening hours; Room Reservation WebFeb 1, 2005 · Abstract and Figures Experimental results are reported for the bulk motion induced in a bed of granular matter contained in a cylindrical pan with a flat bottom subjected to simultaneous vertical...
WebNov 1, 2002 · The experimental arrangement consists of an annular channel that contains the granular material. One surface, say the upper surface, rotates so as to shear the … WebDec 7, 2012 · We perform an experimental study of granular impact, where intruders strike 2D beds of photoelastic disks from above. High-speed video captures the intruder dynamics and the local granular force response, allowing investigation of grain-scale mechanisms in this process. We observe rich acoustic behavior at the leading edge of the intruder, …
WebNov 1, 1998 · A swirled annular channel is introduced that is suited to study the dynamics of granular arrays. We uncover the mechanism that is responsible for the change of the sense of rotation of a two-dimensional cluster of spheres that is excited by horizontal, … WebA swirled annular channel is introduced that is suited to study the dynamics of granular arrays. We uncover the mechanism that is responsible for the change of the sense of …
WebOct 15, 2024 · The characteristics of a central-toroidal recirculation zone can be predicted using the swirl number from a nozzle. We aim at developing a new ordinary-differential-equation-based model of the swirl number for annular swirl injectors with a …
http://www.sixtysymbols.com/videos/granular_dynamics.htm sharethehappyco.comWeb@article{PhysRevE.58.6061, title = {Granular dynamics in a swirled annulus}, author = {Scherer, Michael A. and Mahr, Thomas and Engel, Andreas and Rehberg, Ingo ... sharethehappydayWebAug 30, 2024 · Dynamics (Mechanics), Ejectors, Flames, Sprays, Combustion chambers, Drops, Heptane, Arches, Ignition, Microphones, Annulus, Damage, Emissions, Evaporation, Filters, Fluctuations (Physics), Gases, Lasers, Sound pressure, Swirling flow, Turbulence, Waveguides This content is only available via PDF. Copyright © 2024 by ASME share the gospel craftWebSep 21, 2024 · The ignition sequence during light-around (order in which the injectors are ignited) was found to be highly repeatable, igniting each consecutive injector in the anticlockwise direction (the direction of bulk swirl). In rare cases, the ignition sequence was observed to branch in both directions. share the gospel with childrenWebMay 4, 2011 · Abstract. We experimentally investigate the mechanical behaviour in cyclic shear of a granular material near a solid wall in a pressure controlled annular shear cell. The use of a model system (glass beads and saw-tooth shaped solid surface) enables the study of the influence of the wall roughness. After an initial shakedown procedure … share the gospelWebNov 1, 1998 · A swirled annular channel is introduced that is suited to study the dynamics of granular arrays. We uncover the mechanism that is responsible for the change of the … share the gospel with easeWebMar 1, 2024 · 1. Introduction. Modern aero-engine combustors feature the state-of-art annular structure with multiple swirling burners [1].There are mainly two types of the annular structures: one is called the straight-flow combustor, commonly adopted in most of turbofan engines; and the other is the reverse-flow combustor, usually used in the … share the good news verse