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dc.rights.licenseRestricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.
dc.contributorAmitay, Michael
dc.contributorSahni, Onkar
dc.contributorKopsaftopoulos, Fotis
dc.contributor.authorFranta, Michael Joseph
dc.date.accessioned2021-11-03T09:21:12Z
dc.date.available2021-11-03T09:21:12Z
dc.date.created2021-01-21T12:37:18Z
dc.date.issued2020-08
dc.identifier.urihttps://hdl.handle.net/20.500.13015/2595
dc.descriptionAugust 2020
dc.descriptionSchool of Engineering
dc.description.abstract
dc.description.abstractThe use of synthetic jets for flow control has been the focus of many different studies over several decades. As more studies have been conducted on synthetic jets, more challenges are identified and the system continues to progress towards a level of technology readiness. One finding is that the effectiveness of synthetic jets is reduced in the presence of a spanwise flow compared to those in a 2-D crossflow. The present study investigates the effects of orifice geometry on a synthetic jet in a laminar unswept crossflow to increase its effectiveness in 3-D flowfields. Three orifice geometries (rectangular, trapezoidal, and triangular), having the sameexit area and the same aspect ratio of 19, were tested in a low speed wind tunnel. The velocity and vorticity fields downstream of the synthetic jet’s orifice were investigated using phase-averaged and time-averaged Stereo Particle Image Velocimetry. All three orifices produced unsteady vortical structures near the orifice that broke down into a quasi-steady pair of streamwise counter-rotating vortices. In case of the rectangular orifice, both the vortices had equal strength and existed till the end of the downstream interrogation region.
dc.language.isoENG
dc.publisherRensselaer Polytechnic Institute, Troy, NY
dc.relation.ispartofRensselaer Theses and Dissertations Online Collection
dc.subjectAeronautical engineering
dc.titleStudy of three dimensional flow structures based on orifice geometry of a synthetic jet in a crossflow
dc.typeElectronic thesis
dc.typeThesis
dc.digitool.pid180279
dc.digitool.pid180280
dc.digitool.pid180281
dc.rights.holderThis electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
dc.description.degreeMS
dc.relation.departmentDept. of Mechanical, Aerospace, and Nuclear Engineering


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