Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations
The nonlinear dynamics of a turbulence driven magnetic island (TDMI) is investigated numerically in a reduced magnetohydrodynamic fluid model. The significance of identifying a characteristic signature of a TDMI for its experimental observation is discussed. The principal focus of our simulations is...
Gespeichert in:
| Veröffentlicht in: | Physics of plasmas 2017-04, Vol.24 (4), p.42309-42309 |
|---|---|
| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 42309 |
|---|---|
| container_issue | 4 |
| container_start_page | 42309 |
| container_title | Physics of plasmas |
| container_volume | 24 |
| creator | Agullo, O. Muraglia, M. Benkadda, S. Poyé, A. Dubuit, N. Garbet, X. Sen, A. |
| description | The nonlinear dynamics of a turbulence driven magnetic island (TDMI) is investigated numerically in a reduced magnetohydrodynamic fluid model. The significance of identifying a characteristic signature of a TDMI for its experimental observation is discussed. The principal focus of our simulations is on the nature of the pressure profile flattening inside a TDMI, and we show that, in agreement with analytical predictions, a partial flattening occurs when the island size exceeds a critical value that is a function of the small scale interchange dynamics. We also present a model and test it numerically, which links explicitly the interchange turbulence and the island pressure flattening. |
| doi_str_mv | 10.1063/1.4981230 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_01793877v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2124504913</sourcerecordid><originalsourceid>FETCH-LOGICAL-c462t-efb4f854a1abbf28780a7dc1926cf797545e48b5d6e7b202e2507e8fba814ce03</originalsourceid><addsrcrecordid>eNqdkEFLwzAYhoMoOKcH_0HAk0JrkqZJehxD3WDoQQVvIU0TzWiTmbSD_Xs3N9zd0_fy8fDwfS8A1xjlGLHiHue0EpgU6ASMMBJVxhmnp7vMUcYY_TgHFyktEUKUlWIEXp-Db503KsJm41XndILBwn6I9dAarw1solsbDzv16U3vNHSpVb5JOZzPc_g8dCY6rVqYXDe0qnfBp0twZlWbzNVhjsH748PbdJYtXp7m08ki05SRPjO2plaUVGFV15YILpDijcYVYdryipe0NFTUZcMMrwkihpSIG2FrJTDVBhVjcLv3fqlWrqLrVNzIoJycTRZyt0OYV4XgfI237M2eXcXwPZjUy2UYot-eJwkmtES0wsXRqGNIKRr7p8VI7vqVWB763bJ3ezZp1_8-_j94HeIRlKvGFj8bU4hS</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2124504913</pqid></control><display><type>article</type><title>Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations</title><source>AIP Journals Complete</source><source>Alma/SFX Local Collection</source><creator>Agullo, O. ; Muraglia, M. ; Benkadda, S. ; Poyé, A. ; Dubuit, N. ; Garbet, X. ; Sen, A.</creator><creatorcontrib>Agullo, O. ; Muraglia, M. ; Benkadda, S. ; Poyé, A. ; Dubuit, N. ; Garbet, X. ; Sen, A.</creatorcontrib><description>The nonlinear dynamics of a turbulence driven magnetic island (TDMI) is investigated numerically in a reduced magnetohydrodynamic fluid model. The significance of identifying a characteristic signature of a TDMI for its experimental observation is discussed. The principal focus of our simulations is on the nature of the pressure profile flattening inside a TDMI, and we show that, in agreement with analytical predictions, a partial flattening occurs when the island size exceeds a critical value that is a function of the small scale interchange dynamics. We also present a model and test it numerically, which links explicitly the interchange turbulence and the island pressure flattening.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/1.4981230</identifier><identifier>CODEN: PHPAEN</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Computational fluid dynamics ; Computer simulation ; Flattening ; Fluid flow ; Magnetic islands ; Magnetohydrodynamic turbulence ; Magnetohydrodynamics ; Mathematical models ; Model testing ; Nonlinear dynamics ; Physics ; Plasma physics</subject><ispartof>Physics of plasmas, 2017-04, Vol.24 (4), p.42309-42309</ispartof><rights>Author(s)</rights><rights>2017 Author(s). Published by AIP Publishing.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c462t-efb4f854a1abbf28780a7dc1926cf797545e48b5d6e7b202e2507e8fba814ce03</citedby><cites>FETCH-LOGICAL-c462t-efb4f854a1abbf28780a7dc1926cf797545e48b5d6e7b202e2507e8fba814ce03</cites><orcidid>0000-0001-5730-1259 ; 0000-0002-5206-3455</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/pop/article-lookup/doi/10.1063/1.4981230$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,314,776,780,790,881,4497,27903,27904,76130</link.rule.ids><backlink>$$Uhttps://hal.science/hal-01793877$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Agullo, O.</creatorcontrib><creatorcontrib>Muraglia, M.</creatorcontrib><creatorcontrib>Benkadda, S.</creatorcontrib><creatorcontrib>Poyé, A.</creatorcontrib><creatorcontrib>Dubuit, N.</creatorcontrib><creatorcontrib>Garbet, X.</creatorcontrib><creatorcontrib>Sen, A.</creatorcontrib><title>Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations</title><title>Physics of plasmas</title><description>The nonlinear dynamics of a turbulence driven magnetic island (TDMI) is investigated numerically in a reduced magnetohydrodynamic fluid model. The significance of identifying a characteristic signature of a TDMI for its experimental observation is discussed. The principal focus of our simulations is on the nature of the pressure profile flattening inside a TDMI, and we show that, in agreement with analytical predictions, a partial flattening occurs when the island size exceeds a critical value that is a function of the small scale interchange dynamics. We also present a model and test it numerically, which links explicitly the interchange turbulence and the island pressure flattening.</description><subject>Computational fluid dynamics</subject><subject>Computer simulation</subject><subject>Flattening</subject><subject>Fluid flow</subject><subject>Magnetic islands</subject><subject>Magnetohydrodynamic turbulence</subject><subject>Magnetohydrodynamics</subject><subject>Mathematical models</subject><subject>Model testing</subject><subject>Nonlinear dynamics</subject><subject>Physics</subject><subject>Plasma physics</subject><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqdkEFLwzAYhoMoOKcH_0HAk0JrkqZJehxD3WDoQQVvIU0TzWiTmbSD_Xs3N9zd0_fy8fDwfS8A1xjlGLHiHue0EpgU6ASMMBJVxhmnp7vMUcYY_TgHFyktEUKUlWIEXp-Db503KsJm41XndILBwn6I9dAarw1solsbDzv16U3vNHSpVb5JOZzPc_g8dCY6rVqYXDe0qnfBp0twZlWbzNVhjsH748PbdJYtXp7m08ki05SRPjO2plaUVGFV15YILpDijcYVYdryipe0NFTUZcMMrwkihpSIG2FrJTDVBhVjcLv3fqlWrqLrVNzIoJycTRZyt0OYV4XgfI237M2eXcXwPZjUy2UYot-eJwkmtES0wsXRqGNIKRr7p8VI7vqVWB763bJ3ezZp1_8-_j94HeIRlKvGFj8bU4hS</recordid><startdate>20170401</startdate><enddate>20170401</enddate><creator>Agullo, O.</creator><creator>Muraglia, M.</creator><creator>Benkadda, S.</creator><creator>Poyé, A.</creator><creator>Dubuit, N.</creator><creator>Garbet, X.</creator><creator>Sen, A.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0001-5730-1259</orcidid><orcidid>https://orcid.org/0000-0002-5206-3455</orcidid></search><sort><creationdate>20170401</creationdate><title>Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations</title><author>Agullo, O. ; Muraglia, M. ; Benkadda, S. ; Poyé, A. ; Dubuit, N. ; Garbet, X. ; Sen, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c462t-efb4f854a1abbf28780a7dc1926cf797545e48b5d6e7b202e2507e8fba814ce03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Computational fluid dynamics</topic><topic>Computer simulation</topic><topic>Flattening</topic><topic>Fluid flow</topic><topic>Magnetic islands</topic><topic>Magnetohydrodynamic turbulence</topic><topic>Magnetohydrodynamics</topic><topic>Mathematical models</topic><topic>Model testing</topic><topic>Nonlinear dynamics</topic><topic>Physics</topic><topic>Plasma physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Agullo, O.</creatorcontrib><creatorcontrib>Muraglia, M.</creatorcontrib><creatorcontrib>Benkadda, S.</creatorcontrib><creatorcontrib>Poyé, A.</creatorcontrib><creatorcontrib>Dubuit, N.</creatorcontrib><creatorcontrib>Garbet, X.</creatorcontrib><creatorcontrib>Sen, A.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Physics of plasmas</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Agullo, O.</au><au>Muraglia, M.</au><au>Benkadda, S.</au><au>Poyé, A.</au><au>Dubuit, N.</au><au>Garbet, X.</au><au>Sen, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations</atitle><jtitle>Physics of plasmas</jtitle><date>2017-04-01</date><risdate>2017</risdate><volume>24</volume><issue>4</issue><spage>42309</spage><epage>42309</epage><pages>42309-42309</pages><issn>1070-664X</issn><eissn>1089-7674</eissn><coden>PHPAEN</coden><abstract>The nonlinear dynamics of a turbulence driven magnetic island (TDMI) is investigated numerically in a reduced magnetohydrodynamic fluid model. The significance of identifying a characteristic signature of a TDMI for its experimental observation is discussed. The principal focus of our simulations is on the nature of the pressure profile flattening inside a TDMI, and we show that, in agreement with analytical predictions, a partial flattening occurs when the island size exceeds a critical value that is a function of the small scale interchange dynamics. We also present a model and test it numerically, which links explicitly the interchange turbulence and the island pressure flattening.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4981230</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-5730-1259</orcidid><orcidid>https://orcid.org/0000-0002-5206-3455</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1070-664X |
| ispartof | Physics of plasmas, 2017-04, Vol.24 (4), p.42309-42309 |
| issn | 1070-664X 1089-7674 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_01793877v1 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Computational fluid dynamics Computer simulation Flattening Fluid flow Magnetic islands Magnetohydrodynamic turbulence Magnetohydrodynamics Mathematical models Model testing Nonlinear dynamics Physics Plasma physics |
| title | Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-23T17%3A17%3A54IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Nonlinear%20dynamics%20of%20turbulence%20driven%20magnetic%20islands.%20II.%20Numerical%20simulations&rft.jtitle=Physics%20of%20plasmas&rft.au=Agullo,%20O.&rft.date=2017-04-01&rft.volume=24&rft.issue=4&rft.spage=42309&rft.epage=42309&rft.pages=42309-42309&rft.issn=1070-664X&rft.eissn=1089-7674&rft.coden=PHPAEN&rft_id=info:doi/10.1063/1.4981230&rft_dat=%3Cproquest_hal_p%3E2124504913%3C/proquest_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2124504913&rft_id=info:pmid/&rfr_iscdi=true |