Double-sided fluidic oscillator jet
AssigneeUnited Arab Emirates University
InventorsEmad ELNAJJAR, Mohammed Sami Uddin KHAN
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Abstract
A double-sided fluidic oscillator, includes a primary feedback loop unit, a secondary feedback loop unit with two outlet and one inlet, and a common mixing chamber. Two perpendicular oscillator jets operating at different oscillation frequencies produce perpendicular and bi-stable pulsating flow oscillations, simultaneously. The proposed design of the fluidic oscillator is a double-sided fluidic oscillator. Also, disclosed is a method of achieving an enhanced heat and mass transfer by better mixing due to the wide sweeping pattern over a target surface using the double-sided fluidic oscillator.
Claims15
A fluidic oscillator, comprising:
- a primary feedback loop unit;
- a secondary feedback loop unit;
- at least one outlet and a single inlet;
- a single and common mixing chamber;
- and
- at least two perpendicular oscillator jets operating at different oscillation frequencies, producing perpendicular and bi-stable pulsating flow oscillations, simultaneously, wherein switching of fluid occurs between the primary and secondary feedback loop units for achieving sweeping jet patterns.
A method of achieving a wide sweeping pattern and augmenting heat transfer over a target surface using a double-sided fluidic oscillator, the method comprising the steps of:
- switching of fluid between primary and secondary feedback loop units for achieving a biaxial sweeping jet pattern along the target surface;
- allowing a fraction of the mass fluid flow rate to enter the secondary feedback loop, wherein the primary feedback loop unit produces a horizontal sweeping pattern, and the secondary feedback loop unit produces a vertical sweeping pattern, thereby providing the biaxial sweeping jet patterns via the primary and secondary feedback loop units operating at different frequencies.
Dependencies are inferred from the claim text.