Generation and Analysis of Streamwise Vortices from Vortex Tube Apparatus

dc.contributor.authorCarlson, Bailey McKay
dc.date.accessioned2021-03-08T18:07:36Z
dc.date.available2021-03-08T18:07:36Z
dc.date.issued2020
dc.description.abstractA pressurized vortex tube is used to generate streamwise vortices in a wind tunnel and the resulting flow behavior is analyzed. The apparatus is intended to verify computational data from the AFRL by offering a method of conducting real-world counterpart experiments. The apparatus design process and other considered approaches are discussed. The vortex tube is operated at pressures of 20, 30 and 40 psi while the wind tunnel is operated at 3, 5, 10 and 20% capacity. Flow measurements are performed using particle image velocimetry to observe vortices and freestream interactions from which velocity and vorticity data is comparatively analyzed. Results indicate that vortex velocity greater than freestream flow velocity is a primary factor in maintaining vortex structures further downstream, while increased supply pressure and reduced freestream velocity also reduce vortex dissipation rate. A brief analysis of the vortex interaction with a downstream airfoil is presented to support future work.en_US
dc.identifier.orcid0000-0002-5193-1417
dc.identifier.urihttps://hdl.handle.net/10365/31783
dc.publisherNorth Dakota State Universityen_US
dc.rightsNDSU policy 190.6.2en_US
dc.rights.urihttps://www.ndsu.edu/fileadmin/policy/190.pdfen_US
dc.subjectairfoilen_US
dc.subjectcomputational fluid dynamicsen_US
dc.subjectparticle image velocimetryen_US
dc.subjectstreamwise vortexen_US
dc.subjectvortexen_US
dc.subjectvortex tubeen_US
dc.titleGeneration and Analysis of Streamwise Vortices from Vortex Tube Apparatusen_US
dc.typeThesisen_US
ndsu.advisorEstevadeordal, Jordi
ndsu.collegeEngineeringen_US
ndsu.degreeMaster of Science (MS)en_US
ndsu.departmentMechanical Engineeringen_US
ndsu.programMechanical Engineeringen_US

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