Characteristics of Hydrogen Jets in Supersonic Crossflow: Large-Eddy Simulation Study
The characteristics of hydrogen jets transversely injected into a supersonic crossflow under four different injection and crossflow conditions were investigated by large-eddy simulation. The effects of the jet-to-crossflow momentum flux ratio and crossflow velocity were studied. The jet trajectory i...
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| Veröffentlicht in: | Journal of propulsion and power 2013-05, Vol.29 (3), p.661-674 |
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| container_end_page | 674 |
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| container_issue | 3 |
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| container_title | Journal of propulsion and power |
| container_volume | 29 |
| creator | Watanabe, Junya Kouchi, Toshinori Takita, Kenichi Masuya, Goro |
| description | The characteristics of hydrogen jets transversely injected into a supersonic crossflow under four different injection and crossflow conditions were investigated by large-eddy simulation. The effects of the jet-to-crossflow momentum flux ratio and crossflow velocity were studied. The jet trajectory in the averaged field was controlled by the value of the square root of the jet-to-crossflow momentum flux ratio irrespective of the crossflow conditions. When the crossflow conditions were fixed many jet characteristics were similar in the space normalized using the square root of jet-to-crossflow momentum flux ratio. On the other hand, the crossflow conditions had a strong impact on the jet characteristics. Although the turbulent intensity around the jet was not affected to a great extent, the shape and convection velocity of the large-scale structures appearing on the windward side of the jet plume depended on the crossflow conditions. With a higher crossflow velocity the convection velocity was higher, the jet was more intermittent, and the progress of mixing was slower. The turbulent mixing state had different features depending on the crossflow conditions. |
| doi_str_mv | 10.2514/1.B34521 |
| format | Article |
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The effects of the jet-to-crossflow momentum flux ratio and crossflow velocity were studied. The jet trajectory in the averaged field was controlled by the value of the square root of the jet-to-crossflow momentum flux ratio irrespective of the crossflow conditions. When the crossflow conditions were fixed many jet characteristics were similar in the space normalized using the square root of jet-to-crossflow momentum flux ratio. On the other hand, the crossflow conditions had a strong impact on the jet characteristics. Although the turbulent intensity around the jet was not affected to a great extent, the shape and convection velocity of the large-scale structures appearing on the windward side of the jet plume depended on the crossflow conditions. With a higher crossflow velocity the convection velocity was higher, the jet was more intermittent, and the progress of mixing was slower. The turbulent mixing state had different features depending on the crossflow conditions.</description><identifier>ISSN: 0748-4658</identifier><identifier>EISSN: 1533-3876</identifier><identifier>DOI: 10.2514/1.B34521</identifier><identifier>CODEN: JPPOEL</identifier><language>eng</language><publisher>Reston: American Institute of Aeronautics and Astronautics</publisher><subject>Convection ; Cross flow ; Flux ; Jets ; Large eddy simulation ; Momentum ; Plumes ; Roots ; Turbulence ; Turbulent mixing ; Velocity ; Vortices</subject><ispartof>Journal of propulsion and power, 2013-05, Vol.29 (3), p.661-674</ispartof><rights>Copyright © 2013 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Copies of this paper may be made for personal or internal use, on condition that the copier pay the $10.00 per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923; include the code and $10.00 in correspondence with the CCC.</rights><rights>Copyright © 2013 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Copies of this paper may be made for personal or internal use, on condition that the copier pay the $10.00 per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923; include the code 1533-3876/13 and $10.00 in correspondence with the CCC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a484t-acc26f9201f858f1b057bc8263599dcd8ede75a578311f0279478a80b77d49133</citedby><cites>FETCH-LOGICAL-a484t-acc26f9201f858f1b057bc8263599dcd8ede75a578311f0279478a80b77d49133</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Watanabe, Junya</creatorcontrib><creatorcontrib>Kouchi, Toshinori</creatorcontrib><creatorcontrib>Takita, Kenichi</creatorcontrib><creatorcontrib>Masuya, Goro</creatorcontrib><title>Characteristics of Hydrogen Jets in Supersonic Crossflow: Large-Eddy Simulation Study</title><title>Journal of propulsion and power</title><description>The characteristics of hydrogen jets transversely injected into a supersonic crossflow under four different injection and crossflow conditions were investigated by large-eddy simulation. The effects of the jet-to-crossflow momentum flux ratio and crossflow velocity were studied. The jet trajectory in the averaged field was controlled by the value of the square root of the jet-to-crossflow momentum flux ratio irrespective of the crossflow conditions. When the crossflow conditions were fixed many jet characteristics were similar in the space normalized using the square root of jet-to-crossflow momentum flux ratio. On the other hand, the crossflow conditions had a strong impact on the jet characteristics. Although the turbulent intensity around the jet was not affected to a great extent, the shape and convection velocity of the large-scale structures appearing on the windward side of the jet plume depended on the crossflow conditions. With a higher crossflow velocity the convection velocity was higher, the jet was more intermittent, and the progress of mixing was slower. The turbulent mixing state had different features depending on the crossflow conditions.</description><subject>Convection</subject><subject>Cross flow</subject><subject>Flux</subject><subject>Jets</subject><subject>Large eddy simulation</subject><subject>Momentum</subject><subject>Plumes</subject><subject>Roots</subject><subject>Turbulence</subject><subject>Turbulent mixing</subject><subject>Velocity</subject><subject>Vortices</subject><issn>0748-4658</issn><issn>1533-3876</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqF0U1LwzAYB_AgCs4p-BEKInjpzJP3etMynTLwMHcuWZrOjK6ZSYvs29sxD2MHPT2XH8_bH6FrwCPCgd3D6IkyTuAEDYBTmlIlxSkaYMlUygRX5-gixhXGIJSQAzTPP3XQprXBxdaZmPgqmWzL4Je2Sd5sGxPXJLNuY0P0jTNJHnyMVe2_H5KpDkubjstym8zcuqt163xv267cXqKzStfRXv3WIZo_jz_ySTp9f3nNH6epZoq1qTaGiCojGCrFVQULzOXCKCIoz7LSlMqWVnLNpaIAFSYyY1JphRdSliwDSofobt93E_xXZ2NbrF00tq51Y30XC5CCAOWSyv8pA6kkZSLr6c0RXfkuNP0hBWEZ5apfXv6lgApO-qXxwVize1ywVbEJbq3DtgBc7AIroNgH1tPbPdVO64Nmx-4HbpWQMw</recordid><startdate>20130501</startdate><enddate>20130501</enddate><creator>Watanabe, Junya</creator><creator>Kouchi, Toshinori</creator><creator>Takita, Kenichi</creator><creator>Masuya, Goro</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></search><sort><creationdate>20130501</creationdate><title>Characteristics of Hydrogen Jets in Supersonic Crossflow: Large-Eddy Simulation Study</title><author>Watanabe, Junya ; Kouchi, Toshinori ; Takita, Kenichi ; Masuya, Goro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a484t-acc26f9201f858f1b057bc8263599dcd8ede75a578311f0279478a80b77d49133</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Convection</topic><topic>Cross flow</topic><topic>Flux</topic><topic>Jets</topic><topic>Large eddy simulation</topic><topic>Momentum</topic><topic>Plumes</topic><topic>Roots</topic><topic>Turbulence</topic><topic>Turbulent mixing</topic><topic>Velocity</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Watanabe, Junya</creatorcontrib><creatorcontrib>Kouchi, Toshinori</creatorcontrib><creatorcontrib>Takita, Kenichi</creatorcontrib><creatorcontrib>Masuya, Goro</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>Journal of propulsion and power</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Watanabe, Junya</au><au>Kouchi, Toshinori</au><au>Takita, Kenichi</au><au>Masuya, Goro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characteristics of Hydrogen Jets in Supersonic Crossflow: Large-Eddy Simulation Study</atitle><jtitle>Journal of propulsion and power</jtitle><date>2013-05-01</date><risdate>2013</risdate><volume>29</volume><issue>3</issue><spage>661</spage><epage>674</epage><pages>661-674</pages><issn>0748-4658</issn><eissn>1533-3876</eissn><coden>JPPOEL</coden><abstract>The characteristics of hydrogen jets transversely injected into a supersonic crossflow under four different injection and crossflow conditions were investigated by large-eddy simulation. The effects of the jet-to-crossflow momentum flux ratio and crossflow velocity were studied. The jet trajectory in the averaged field was controlled by the value of the square root of the jet-to-crossflow momentum flux ratio irrespective of the crossflow conditions. When the crossflow conditions were fixed many jet characteristics were similar in the space normalized using the square root of jet-to-crossflow momentum flux ratio. On the other hand, the crossflow conditions had a strong impact on the jet characteristics. Although the turbulent intensity around the jet was not affected to a great extent, the shape and convection velocity of the large-scale structures appearing on the windward side of the jet plume depended on the crossflow conditions. With a higher crossflow velocity the convection velocity was higher, the jet was more intermittent, and the progress of mixing was slower. The turbulent mixing state had different features depending on the crossflow conditions.</abstract><cop>Reston</cop><pub>American Institute of Aeronautics and Astronautics</pub><doi>10.2514/1.B34521</doi><tpages>14</tpages></addata></record> |
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| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Convection Cross flow Flux Jets Large eddy simulation Momentum Plumes Roots Turbulence Turbulent mixing Velocity Vortices |
| title | Characteristics of Hydrogen Jets in Supersonic Crossflow: Large-Eddy Simulation Study |
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