Synthetic Jet Actuators with the Same Cross-Sectional Area Orifices-Flow and Acoustic Aspects
نویسندگان
چکیده
In this paper, synthetic jet actuators (SJAs) with three different orifice shapes (circular, square, and slot) the same cross-section area were investigated. The SJA efficiency (SJ) Reynolds number calculated based on time-mean reaction force measurement. momentum velocity was measured hot-wire anemometry additionally, sound pressure level (SPL) measured. equal maximally to 5.3% for each shape, but square characterized higher number. compared centerline (axial) velocities radial profile at a distance of 112 mm similar type. SPL measurement results surprisingly constant in relation other. generates lowest SPL, approximately 2.8dB lower than circular orifice, 4.2dB slot investigated real power. Finally, differences other papers limitations approach comparing orifices presented present paper indicated.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2021
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app11104600