Global ETD Search
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Showing 1 to 6 of 6 for “"secondary vortices"”.
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Global vorticity shedding for a vanishing foil
… shed boundary layer vorticity forms into primary vortices, which evolve and eventually amalgamate with secondary vortices to leave two lasting vortices in the wake. The secondary vortices are a result of three-dimensionality in the flow. For a streamlined-end foil, we achieve a simpler and less …
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Laboratory Analysis of Vortex Dynamics For Shallow Tidal Inlets
… jet vortex dipole detaches from the inlet, secondary vortices shed due to separation from the inlet boundary and eventually reach the starting-jet dipole. An idealized inlet con figuration was utilized for laboratory experiments detailing the formation and propagation of the vortex …
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A wind tunnel investigation of a wing-tip trailing vortex
… used to study the vortex at 10 chordlengths. Two vortices were found in the tip-flow studies, a primary vortex core formed on the suction side surface of the wingtip and a weaker secondary vortex formed on the endcap. The primary vortex core lifts from the surface of the wingtip as it proceeds …
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Numerical Simulation of Vortex Generating Jets in Zero and Adverse Pressure Gradients
… Observed flow features include primary and secondary vortices, where the primary vortex eventually dominates the downstream region. A shell wall structure, created by smaller vortical structures surrounding the developing vortices, was also observed. A pulsed jet in a zero pressure gradient …
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Large -eddy simulation of a three-dimensional compressible tornado vortex
… are essentially limited to influencing the secondary vortices. In general, compressibility effects would not change the basic dynamics of tornadic corner flows even if Mach numbers greater than one are achieved.;This study also shows that during the sharp temporal overshoot in near-surface …
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The Influence of the Slot Aspect Ratio on the Flow Field of Synthetic Jets
… has been extended by a saturation criterion for secondary vortices. Furthermore, several design specifications have been established to assist actuator optimisation. Finally, the usage of the hybrid turbulence model approach has been evaluated and its potential compared to Large-Eddy Simulations …