Abstract
This paper describes an investigation of the commercial synthetic jet actuator “SynJet ZFlow 90 Outdoor Cooler” (Nuventix). The velocity flow field was investigated using the thermoanemometry method in the constant temperature mode. The Eigen frequency of the used actuator was also calculated in this work.
Highlights
This paper deals with an investigation of unsteady velocity flow field which generates the actuator of synthetic jet
This paper describes an investigation of the commercial synthetic jet actuator “SynJet ZFlow 90 Outdoor Cooler” (Nuventix)
The commercial actuator “SynJet ZFlow 90 Outdoor Cooler” from Nuventix Company is used for our research, [1]
Summary
This paper deals with an investigation of unsteady velocity flow field which generates the actuator of synthetic jet. A SJ is synthesized by the interactions within a train of vortex rings or counter-rotating vortex pairs in axis-symmetric or two-dimensional geometry, [2]. These vortex rings are generated by the periodical motion of an actuator oscillating membrane. This membrane enables fluid suction into the actuator cavity in the first part of the membrane motion. One of the main advantages of a SJ is that the time-mean mass flux of the oscillatory flow in the orifice is zero; the other common expression is a zero-net-massflux (ZNMF) jet. Though the SJ actuator works with a ZNMF at the orifice, the momentum of the resultant SJ at a specific distance from the lip in y is non-zero [2,3,4]
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