On the performance and flow characteristics of jet pumps with multiple orifices
The design of compact thermoacoustic devices requires compact jet pump geometries, which can be realized by employing jet pumps with multiple orifices. The oscillatory flow through the orifice(s) of a jet pump generates asymmetric hydrodynamic end effects, which result in a time-averaged pressure dr...
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| Veröffentlicht in: | The Journal of the Acoustical Society of America 2016-05, Vol.139 (5), p.2732-2740 |
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| container_title | The Journal of the Acoustical Society of America |
| container_volume | 139 |
| creator | Oosterhuis, Joris P. Timmer, Michael A. G. Bühler, Simon van der Meer, Theo H. Wilcox, Douglas |
| description | The design of compact thermoacoustic devices requires compact jet pump geometries,
which can be realized by employing jet pumps with multiple orifices. The oscillatory
flow through the orifice(s) of a jet pump generates asymmetric hydrodynamic end
effects, which result in a time-averaged pressure drop that can counteract Gedeon streaming
in traveling wave thermoacoustic devices. In this study, the performance of
jet pumps
having 1–16 orifices is characterized experimentally in terms of the time-averaged
pressure
drop and acoustic power dissipation. Upon increasing the number of orifices, a significant
decay in the jet pump performance is observed. Further analysis shows a relation
between this performance decay and the diameter of the individual holes. Possible causes
of this phenomenon are discussed. Flow visualization is used to study the differences in vortex ring interaction from
adjacent jet pump orifices. The mutual orifice spacing is varied and the
corresponding jet pump performance is measured. The orifice spacing is shown to have less effect
on the jet
pump performance compared to increasing the number of orifices. |
| doi_str_mv | 10.1121/1.4948930 |
| format | Article |
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which can be realized by employing jet pumps with multiple orifices. The oscillatory
flow through the orifice(s) of a jet pump generates asymmetric hydrodynamic end
effects, which result in a time-averaged pressure drop that can counteract Gedeon streaming
in traveling wave thermoacoustic devices. In this study, the performance of
jet pumps
having 1–16 orifices is characterized experimentally in terms of the time-averaged
pressure
drop and acoustic power dissipation. Upon increasing the number of orifices, a significant
decay in the jet pump performance is observed. Further analysis shows a relation
between this performance decay and the diameter of the individual holes. Possible causes
of this phenomenon are discussed. Flow visualization is used to study the differences in vortex ring interaction from
adjacent jet pump orifices. The mutual orifice spacing is varied and the
corresponding jet pump performance is measured. The orifice spacing is shown to have less effect
on the jet
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which can be realized by employing jet pumps with multiple orifices. The oscillatory
flow through the orifice(s) of a jet pump generates asymmetric hydrodynamic end
effects, which result in a time-averaged pressure drop that can counteract Gedeon streaming
in traveling wave thermoacoustic devices. In this study, the performance of
jet pumps
having 1–16 orifices is characterized experimentally in terms of the time-averaged
pressure
drop and acoustic power dissipation. Upon increasing the number of orifices, a significant
decay in the jet pump performance is observed. Further analysis shows a relation
between this performance decay and the diameter of the individual holes. Possible causes
of this phenomenon are discussed. Flow visualization is used to study the differences in vortex ring interaction from
adjacent jet pump orifices. The mutual orifice spacing is varied and the
corresponding jet pump performance is measured. The orifice spacing is shown to have less effect
on the jet
pump performance compared to increasing the number of orifices.</description><issn>0001-4966</issn><issn>1520-8524</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp90E1LxDAQBuAgirt-HPwDkqMK1UybZNOjiF8g7EXPJU0nbJa2qUmq-O-t7KoHwdMw8Mw78BJyAuwSIIcruOQlV2XBdsgcRM4yJXK-S-aMMch4KeWMHMS4nlahinKfzPJFLhhIOSfLZU_TCumAwfrQ6d4g1X1DbevfqVnpoE3C4GJyJlJv6RoTHcZuiPTdpRXtxja5oUXqg7POYDwie1a3EY-385C83N0-3zxkT8v7x5vrp8wUQqSsQbmQyMu8ZiAwVwJrLjQUvLZ1g0zVWCjgCo20gEw0JV8wyRVjCqYLbIpDcrbJHYJ_HTGmqnPRYNvqHv0YK1iURQkMCjnR8w01wccY0FZDcJ0OHxWw6qu_Cqptf5M93caOdYfNj_wubAIXGxCNSzo53_-YNx9-k6qhsf_hv68_ARvDhiw</recordid><startdate>201605</startdate><enddate>201605</enddate><creator>Oosterhuis, Joris P.</creator><creator>Timmer, Michael A. G.</creator><creator>Bühler, Simon</creator><creator>van der Meer, Theo H.</creator><creator>Wilcox, Douglas</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>201605</creationdate><title>On the performance and flow characteristics of jet pumps with multiple orifices</title><author>Oosterhuis, Joris P. ; Timmer, Michael A. G. ; Bühler, Simon ; van der Meer, Theo H. ; Wilcox, Douglas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c355t-de676e492b015e285eb45a134bfbde08be38148ec6f1e05d94706480081b01ed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Oosterhuis, Joris P.</creatorcontrib><creatorcontrib>Timmer, Michael A. G.</creatorcontrib><creatorcontrib>Bühler, Simon</creatorcontrib><creatorcontrib>van der Meer, Theo H.</creatorcontrib><creatorcontrib>Wilcox, Douglas</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of the Acoustical Society of America</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Oosterhuis, Joris P.</au><au>Timmer, Michael A. G.</au><au>Bühler, Simon</au><au>van der Meer, Theo H.</au><au>Wilcox, Douglas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the performance and flow characteristics of jet pumps with multiple orifices</atitle><jtitle>The Journal of the Acoustical Society of America</jtitle><addtitle>J Acoust Soc Am</addtitle><date>2016-05</date><risdate>2016</risdate><volume>139</volume><issue>5</issue><spage>2732</spage><epage>2740</epage><pages>2732-2740</pages><issn>0001-4966</issn><eissn>1520-8524</eissn><coden>JASMAN</coden><abstract>The design of compact thermoacoustic devices requires compact jet pump geometries,
which can be realized by employing jet pumps with multiple orifices. The oscillatory
flow through the orifice(s) of a jet pump generates asymmetric hydrodynamic end
effects, which result in a time-averaged pressure drop that can counteract Gedeon streaming
in traveling wave thermoacoustic devices. In this study, the performance of
jet pumps
having 1–16 orifices is characterized experimentally in terms of the time-averaged
pressure
drop and acoustic power dissipation. Upon increasing the number of orifices, a significant
decay in the jet pump performance is observed. Further analysis shows a relation
between this performance decay and the diameter of the individual holes. Possible causes
of this phenomenon are discussed. Flow visualization is used to study the differences in vortex ring interaction from
adjacent jet pump orifices. The mutual orifice spacing is varied and the
corresponding jet pump performance is measured. The orifice spacing is shown to have less effect
on the jet
pump performance compared to increasing the number of orifices.</abstract><cop>United States</cop><pmid>27250166</pmid><doi>10.1121/1.4948930</doi><tpages>9</tpages></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection; AIP Acoustical Society of America |
| title | On the performance and flow characteristics of jet pumps with multiple orifices |
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