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....
Gespeichert in:
Veröffentlicht in: | AIAA journal 2024-04, Vol.62 (4), p.1563-1573 |
---|---|
Hauptverfasser: | , , |
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 & 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 |