WebbSome three decades have elapsed since the phenomenon of vortex breakdown was first observed in the leading-edge vortices trailing from delta wings. Shortly after these early observations, instability, wave propagation and flow stagnation were proposed as key elements, if not explanations, for vortex breakdown. In the meantime a great deal of … WebbVortex breakdown has been observed in a number of swirling flows, including the leading edge vortex generated above delta wings, in open pipes with swirling inflows, and in the torsionally driven cylinder. Breakdown has also been observed in cyclonic separators and is used as a flame holder in combustion chambers.
Some observations of the vortex breakdown phenomenon
WebbThe themes of wave propagation and hydrodynamic stability have played prominent roles in attempts to understand the phenomenon of vortex breakdown. Recent theoretical and experimental work provide evidence that waves and instabilities are important elements of the vortex breakdown process. Webb8 aug. 2024 · The surface morphology of fractures formed by hydraulic fracturing is usually rough. The roughness of the fracture surface is the main reason the actual fracture conductivity deviates from the ideal flat plate model result. In this paper, based on the three-dimensional reconfiguration of actual rough hydraulic fractures, a randomly … chinn elementary school
Vortex Breakdown - ResearchGate
Webb13 apr. 2024 · Since the phenomenon depends on the electrostatic interaction between cell and surface, we expect that higher salt concentrations would screen the electrostatic interaction, reducing the effect. To demonstrate this, we conduct experiments with saltwater Nannochloropsis oculata, which are cultured in Erdschreiber's medium (0.6 m ). Webb1 apr. 2024 · The energy gradient theory is used to explain the vortex breakdown in the cylinder with consideration of centrifugal force, Coriolis force, angular momentum and … Webb12 apr. 2024 · This study analyzes the influences of the mid-level vortex on the formation of Tropical Cyclone Toraji (2013). A rare case of a tropical cyclone that formed near Taiwan involved a mid-level vortex that was a remnant of Tropical Cyclone Kong-Rey (2013). The piecewise potential vorticity inversion method is applied to examine the contribution of … chinnelle identity school of acting