Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Flow actuation"”.
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A study of direct-current surface discharge plasma for a Mach 3 supersonic flow control
… discharge plasma in the presence of a Mach 2.85 flow is studied experimentally for flow control applications. The discharge is generated with pin-like electrodes flush mounted on a ceramic plate with sustaining currents from 25 mA to 300 mA. In the presence of a supersonic flow, two distinct …
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Fluid mechanics of ported shroud centrifugal compressor for vehicular turbocharger applications
… used to determine the impact of the PS on the flow field and hence performance. It is shown that the main flow path perceives the PS flow as a combination of flow actuations that include injection and removal of mass flow, and injection of axial momentum and tangential momentum. A computational …
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On the turbulence-generated sound and control of compressible mixing layers
… to characterize the physical mechanisms of flow actuation by localized arc-filament plasma actuators. A validated numerical model of the actuator is devised and placed, as in corresponding experiments, in a cavity in the nozzle near its exit. A rapid Joule heating caused by the plasma is …
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Hydrodynamics of flexible-body swimming motions
… quantities and the near-body unsteady flow features are corroborated through experimental comparisons. Employing this numeric scheme for a variety of fish forms, the unsteady flow dynamics are resolved in great detail and are found to be much more complex than that predicted by linear …
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Particle modeling of non-equilibrium field emission driven RF microplasmas
… pressures have been investigated for active flow control, micropropulsion and electronic display applications to name a few. The operational voltages for these microplasmas are on the order of kilovolts. When the electric field at the electrodes reaches GV/m or tens of GV/m either due to …
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Quantifying microbubble streaming and its applications
… and exciting ways in which to drive microfluidic flows. A simple and powerful flow actuation method involves the use of acoustically excited microbubbles. For ease of manufacture and flow control, setups have largely focused on microbubbles of semi-cylindrical shape, attached to a wall of the …