Characterization of Out-of-Plane Curved Fluidic Oscillators

A novel fluidic oscillator design, in which the oscillator is curved along the primary flow direction, was evaluated. The effects of mass flow rate, hydraulic diameter, aspect ratio, curvature radius, surface roughness, inlet orientation, and nonconstant curvatures were experimentally investigated....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:AIAA journal 2024-04, Vol.62 (4), p.1563-1573
Hauptverfasser: Spens, Alexander, Brandt, Patrick J., Bons, Jeffrey P.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 1573
container_issue 4
container_start_page 1563
container_title AIAA journal
container_volume 62
creator Spens, Alexander
Brandt, Patrick J.
Bons, Jeffrey P.
description A novel fluidic oscillator design, in which the oscillator is curved along the primary flow direction, was evaluated. The effects of mass flow rate, hydraulic diameter, aspect ratio, curvature radius, surface roughness, inlet orientation, and nonconstant curvatures were experimentally investigated. Measurements of the oscillation Strouhal number, discharge coefficient, spreading angle, and sweeping angle were used to characterize the jet. The resulting oscillators were found to fall into one of three categories: oscillated at the same frequency and sweep angle as conventional flat oscillators; oscillated at a slightly higher frequency and lower sweep angle than flat oscillators; or no dominant oscillation frequency detected and with no sweeping action. An unsteady Reynolds-averaged Navier–Stokes computational fluid dynamics simulation revealed fundamental differences in the internal flow mechanisms between flat and curved oscillators that drive the sweeping jet. The curvature between 37.5 and 62.5% of the total length, or the region from the inlet nozzle to halfway through the main chamber, was a primary factor influencing the response type of a design. Due to the curvature of these oscillators, they have the ability to be used in geometrically constrained spaces, such as the leading edge of wings and turbine vanes.
doi_str_mv 10.2514/1.J063549
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_crossref_primary_10_2514_1_J063549</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2998422541</sourcerecordid><originalsourceid>FETCH-LOGICAL-a288t-f1d02cde8a8be7521b03a0b0b523f6dfc35c9a9c8355c935b51fdf306c33c4133</originalsourceid><addsrcrecordid>eNpl0E1LxDAQBuAgCtbVg_-gIAgesiaZZjfFk5RdP1hYDwrewjRNMEtt1qQV9Ndb2QUPnmYGHt6Bl5BzzqZC8uKaTx_ZDGRRHpCMSwAKSr4ekowxxikvpDgmJyltxkvMFc_ITfWGEU1vo__G3ocuDy5fDz0Njj612Nm8GuKnbfJlO_jGm3ydjG9b7ENMp-TIYZvs2X5OyMty8Vzd09X67qG6XVEUSvXU8YYJ01iFqrZzKXjNAFnNainAzRpnQJoSS6NAjgvIWnLXOGAzA2AKDjAhF7vcbQwfg0293oQhduNLLcpSFULIkU3I1U6ZGFKK1ult9O8YvzRn-rcbzfW-m9Fe7ix6xL-0__AHAdJg5Q</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2998422541</pqid></control><display><type>article</type><title>Characterization of Out-of-Plane Curved Fluidic Oscillators</title><source>Alma/SFX Local Collection</source><creator>Spens, Alexander ; Brandt, Patrick J. ; Bons, Jeffrey P.</creator><creatorcontrib>Spens, Alexander ; Brandt, Patrick J. ; Bons, Jeffrey P.</creatorcontrib><description>A novel fluidic oscillator design, in which the oscillator is curved along the primary flow direction, was evaluated. The effects of mass flow rate, hydraulic diameter, aspect ratio, curvature radius, surface roughness, inlet orientation, and nonconstant curvatures were experimentally investigated. Measurements of the oscillation Strouhal number, discharge coefficient, spreading angle, and sweeping angle were used to characterize the jet. The resulting oscillators were found to fall into one of three categories: oscillated at the same frequency and sweep angle as conventional flat oscillators; oscillated at a slightly higher frequency and lower sweep angle than flat oscillators; or no dominant oscillation frequency detected and with no sweeping action. An unsteady Reynolds-averaged Navier–Stokes computational fluid dynamics simulation revealed fundamental differences in the internal flow mechanisms between flat and curved oscillators that drive the sweeping jet. The curvature between 37.5 and 62.5% of the total length, or the region from the inlet nozzle to halfway through the main chamber, was a primary factor influencing the response type of a design. Due to the curvature of these oscillators, they have the ability to be used in geometrically constrained spaces, such as the leading edge of wings and turbine vanes.</description><identifier>ISSN: 0001-1452</identifier><identifier>EISSN: 1533-385X</identifier><identifier>DOI: 10.2514/1.J063549</identifier><language>eng</language><publisher>Virginia: American Institute of Aeronautics and Astronautics</publisher><subject>Aspect ratio ; Computational fluid dynamics ; Curvature ; Diameters ; Discharge coefficient ; Inlet nozzles ; Internal flow ; Mass flow rate ; Oscillators ; Reynolds averaged Navier-Stokes method ; Strouhal number ; Surface roughness ; Sweep angle ; Sweeping ; Turbines</subject><ispartof>AIAA journal, 2024-04, Vol.62 (4), p.1563-1573</ispartof><rights>Copyright © 2023 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. All requests for copying and permission to reprint should be submitted to CCC at ; employ the eISSN to initiate your request. See also AIAA Rights and Permissions .</rights><rights>Copyright © 2023 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. All requests for copying and permission to reprint should be submitted to CCC at www.copyright.com; employ the eISSN 1533-385X to initiate your request. See also AIAA Rights and Permissions www.aiaa.org/randp.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a288t-f1d02cde8a8be7521b03a0b0b523f6dfc35c9a9c8355c935b51fdf306c33c4133</citedby><cites>FETCH-LOGICAL-a288t-f1d02cde8a8be7521b03a0b0b523f6dfc35c9a9c8355c935b51fdf306c33c4133</cites><orcidid>0000-0002-4340-6778</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Spens, Alexander</creatorcontrib><creatorcontrib>Brandt, Patrick J.</creatorcontrib><creatorcontrib>Bons, Jeffrey P.</creatorcontrib><title>Characterization of Out-of-Plane Curved Fluidic Oscillators</title><title>AIAA journal</title><description>A novel fluidic oscillator design, in which the oscillator is curved along the primary flow direction, was evaluated. The effects of mass flow rate, hydraulic diameter, aspect ratio, curvature radius, surface roughness, inlet orientation, and nonconstant curvatures were experimentally investigated. Measurements of the oscillation Strouhal number, discharge coefficient, spreading angle, and sweeping angle were used to characterize the jet. The resulting oscillators were found to fall into one of three categories: oscillated at the same frequency and sweep angle as conventional flat oscillators; oscillated at a slightly higher frequency and lower sweep angle than flat oscillators; or no dominant oscillation frequency detected and with no sweeping action. An unsteady Reynolds-averaged Navier–Stokes computational fluid dynamics simulation revealed fundamental differences in the internal flow mechanisms between flat and curved oscillators that drive the sweeping jet. The curvature between 37.5 and 62.5% of the total length, or the region from the inlet nozzle to halfway through the main chamber, was a primary factor influencing the response type of a design. Due to the curvature of these oscillators, they have the ability to be used in geometrically constrained spaces, such as the leading edge of wings and turbine vanes.</description><subject>Aspect ratio</subject><subject>Computational fluid dynamics</subject><subject>Curvature</subject><subject>Diameters</subject><subject>Discharge coefficient</subject><subject>Inlet nozzles</subject><subject>Internal flow</subject><subject>Mass flow rate</subject><subject>Oscillators</subject><subject>Reynolds averaged Navier-Stokes method</subject><subject>Strouhal number</subject><subject>Surface roughness</subject><subject>Sweep angle</subject><subject>Sweeping</subject><subject>Turbines</subject><issn>0001-1452</issn><issn>1533-385X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNpl0E1LxDAQBuAgCtbVg_-gIAgesiaZZjfFk5RdP1hYDwrewjRNMEtt1qQV9Ndb2QUPnmYGHt6Bl5BzzqZC8uKaTx_ZDGRRHpCMSwAKSr4ekowxxikvpDgmJyltxkvMFc_ITfWGEU1vo__G3ocuDy5fDz0Njj612Nm8GuKnbfJlO_jGm3ydjG9b7ENMp-TIYZvs2X5OyMty8Vzd09X67qG6XVEUSvXU8YYJ01iFqrZzKXjNAFnNainAzRpnQJoSS6NAjgvIWnLXOGAzA2AKDjAhF7vcbQwfg0293oQhduNLLcpSFULIkU3I1U6ZGFKK1ult9O8YvzRn-rcbzfW-m9Fe7ix6xL-0__AHAdJg5Q</recordid><startdate>202404</startdate><enddate>202404</enddate><creator>Spens, Alexander</creator><creator>Brandt, Patrick J.</creator><creator>Bons, Jeffrey P.</creator><general>American Institute of Aeronautics and Astronautics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-4340-6778</orcidid></search><sort><creationdate>202404</creationdate><title>Characterization of Out-of-Plane Curved Fluidic Oscillators</title><author>Spens, Alexander ; Brandt, Patrick J. ; Bons, Jeffrey P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a288t-f1d02cde8a8be7521b03a0b0b523f6dfc35c9a9c8355c935b51fdf306c33c4133</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Aspect ratio</topic><topic>Computational fluid dynamics</topic><topic>Curvature</topic><topic>Diameters</topic><topic>Discharge coefficient</topic><topic>Inlet nozzles</topic><topic>Internal flow</topic><topic>Mass flow rate</topic><topic>Oscillators</topic><topic>Reynolds averaged Navier-Stokes method</topic><topic>Strouhal number</topic><topic>Surface roughness</topic><topic>Sweep angle</topic><topic>Sweeping</topic><topic>Turbines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Spens, Alexander</creatorcontrib><creatorcontrib>Brandt, Patrick J.</creatorcontrib><creatorcontrib>Bons, Jeffrey P.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>AIAA journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Spens, Alexander</au><au>Brandt, Patrick J.</au><au>Bons, Jeffrey P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of Out-of-Plane Curved Fluidic Oscillators</atitle><jtitle>AIAA journal</jtitle><date>2024-04</date><risdate>2024</risdate><volume>62</volume><issue>4</issue><spage>1563</spage><epage>1573</epage><pages>1563-1573</pages><issn>0001-1452</issn><eissn>1533-385X</eissn><abstract>A novel fluidic oscillator design, in which the oscillator is curved along the primary flow direction, was evaluated. The effects of mass flow rate, hydraulic diameter, aspect ratio, curvature radius, surface roughness, inlet orientation, and nonconstant curvatures were experimentally investigated. Measurements of the oscillation Strouhal number, discharge coefficient, spreading angle, and sweeping angle were used to characterize the jet. The resulting oscillators were found to fall into one of three categories: oscillated at the same frequency and sweep angle as conventional flat oscillators; oscillated at a slightly higher frequency and lower sweep angle than flat oscillators; or no dominant oscillation frequency detected and with no sweeping action. An unsteady Reynolds-averaged Navier–Stokes computational fluid dynamics simulation revealed fundamental differences in the internal flow mechanisms between flat and curved oscillators that drive the sweeping jet. The curvature between 37.5 and 62.5% of the total length, or the region from the inlet nozzle to halfway through the main chamber, was a primary factor influencing the response type of a design. Due to the curvature of these oscillators, they have the ability to be used in geometrically constrained spaces, such as the leading edge of wings and turbine vanes.</abstract><cop>Virginia</cop><pub>American Institute of Aeronautics and Astronautics</pub><doi>10.2514/1.J063549</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-4340-6778</orcidid></addata></record>
fulltext fulltext
identifier ISSN: 0001-1452
ispartof AIAA journal, 2024-04, Vol.62 (4), p.1563-1573
issn 0001-1452
1533-385X
language eng
recordid cdi_crossref_primary_10_2514_1_J063549
source Alma/SFX Local Collection
subjects Aspect ratio
Computational fluid dynamics
Curvature
Diameters
Discharge coefficient
Inlet nozzles
Internal flow
Mass flow rate
Oscillators
Reynolds averaged Navier-Stokes method
Strouhal number
Surface roughness
Sweep angle
Sweeping
Turbines
title Characterization of Out-of-Plane Curved Fluidic Oscillators
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T05%3A10%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Characterization%20of%20Out-of-Plane%20Curved%20Fluidic%20Oscillators&rft.jtitle=AIAA%20journal&rft.au=Spens,%20Alexander&rft.date=2024-04&rft.volume=62&rft.issue=4&rft.spage=1563&rft.epage=1573&rft.pages=1563-1573&rft.issn=0001-1452&rft.eissn=1533-385X&rft_id=info:doi/10.2514/1.J063549&rft_dat=%3Cproquest_cross%3E2998422541%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2998422541&rft_id=info:pmid/&rfr_iscdi=true