نتایج جستجو برای: fluidic oscillator
تعداد نتایج: 33795 فیلتر نتایج به سال:
Investigations of fluidic oscillators, or sweeping jet actuators, have primarily been conducted within the incompressible flow regime, which limits accuracy estimating oscillator performance for compressible flows. The objective this study was to evaluate effects gas compressibility on a oscillator. A commonly used geometry (the Bray geometry) scaled five different sizes, 3D printed, and tested...
The interaction between a spatially oscillating jet emitted by a fluidic oscillator and a cross-flow
Enhancement of heat and mass transfer and decrease of energy dissipation are great necessities of the evolution of fluid flow devices. Utilizing oscillatory or pulsatile fluid flow for periodic disturbing of velocity and thermal boundary layers is one of the methods with exciting results. Passive methods of generating oscillatory flow are preferred to active methods because of simplicity, no ne...
The miniaturization of integrated fluidic processors affords extensive benefits for chemical and biological fields, yet traditional, monolithic methods of microfabrication present numerous obstacles for the scaling of fluidic operators. Recently, researchers have investigated the use of additive manufacturing or "three-dimensional (3D) printing" technologies - predominantly stereolithography - ...
If a gas volume is distributed into many microbubbles of sub-millimetre size, the total gas/liquid surface becomes very large. This increases overall heat and/or mass transport across sum surfaces. The paper discusses several applications in which use efficiency various processes, especially wastewater treatment and growing microorganisms such as algae, yeast, bacteria, or primitive fungi. prob...
This report describes a non-destructive fluidic memory device with associated fluidic alphanumeric display, developed by Giannini Controls Corporation under contract NAS 12-43 with NASA Electronics Research Center. The device uses the surface tension of a liquid bead in an hour-glassshaped cavity to achieve a bi-stable memory effect which does not require a continuous supply of fluid power. Thu...
We demonstrate universal computation in an all-fluidic two-phase microfluidic system. Nonlinearity is introduced into an otherwise linear, reversible, low-Reynolds number flow via bubble-to-bubble hydrodynamic interactions. A bubble traveling in a channel represents a bit, providing us with the capability to simultaneously transport materials and perform logical control operations. We demonstra...
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