<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Astronomy Reports</journal-id><journal-title-group><journal-title xml:lang="en">Astronomy Reports</journal-title><trans-title-group xml:lang="ru"><trans-title>Астрономический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0004-6299</issn><issn publication-format="electronic">3034-5170</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">647497</article-id><article-id pub-id-type="doi">10.31857/S0004629923010097</article-id><article-id pub-id-type="edn">NQAPNB</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Numerical MHD Simulation of Laboratory Jets in a Toroidal Magnetic Field</article-title><trans-title-group xml:lang="ru"><trans-title>Численное МГД моделирование лабораторных джетов в тороидальном магнитном поле</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Toropina</surname><given-names>O. D.</given-names></name><name xml:lang="ru"><surname>Торопина</surname><given-names>О. Д.</given-names></name></name-alternatives><email>toropina@iki.rssi.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bisnovatyi-Kogan</surname><given-names>G. S.</given-names></name><name xml:lang="ru"><surname>Бисноватый-Коган</surname><given-names>Г. С.</given-names></name></name-alternatives><email>toropina@iki.rssi.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Moiseenko</surname><given-names>S. G.</given-names></name><name xml:lang="ru"><surname>Моисеенко</surname><given-names>С. Г.</given-names></name></name-alternatives><email>toropina@iki.rssi.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Space Research Institute of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт космических исследований</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-01-01" publication-format="electronic"><day>01</day><month>01</month><year>2023</year></pub-date><volume>100</volume><issue>1</issue><fpage>6</fpage><lpage>18</lpage><history><date date-type="received" iso-8601-date="2025-01-28"><day>28</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, О.Д. Торопина, Г.С. Бисноватый-Коган, С.Г. Моисеенко</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, О.Д. Торопина, Г.С. Бисноватый-Коган, С.Г. Моисеенко</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">О.Д. Торопина, Г.С. Бисноватый-Коган, С.Г. Моисеенко</copyright-holder><copyright-holder xml:lang="ru">О.Д. Торопина, Г.С. Бисноватый-Коган, С.Г. Моисеенко</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0004-6299/article/view/647497">https://journals.eco-vector.com/0004-6299/article/view/647497</self-uri><abstract xml:lang="en"><p>The results of MHD modeling of the formation and collimation of laboratory jets with a toroidal magnetic field are presented. We showed that in the absence of a magnetic field, a significant expansion of the jet occurs in the computational region. In the presence of a strong toroidal magnetic field, the jet expands insignificantly, which confirms the possibility of a magnetic mechanism of collimation of astrophysical jets. The opening angle of the jet cone depends on the magnitude of the magnetic field induction. The larger Bϕ, the smaller the angle of deflection of the flow. For certain values of Bϕ on the detector, the occurrence of ring structures in the density distribution is possible, the characteristics of which depend on the magnitude of the field. The simulation results are compared with the laboratory jets generated in the experiment at the Neodim laser facility and with the previously obtained results of the MHD simulation of the formation of jets in a poloidal magnetic field.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324546560">В работе представлены результаты МГД моделирования процесса образования и коллимации лабораторных джетов с тороидальным магнитным полем. Показано, что при отсутствии магнитного поля происходит существенное расширение джета в расчетной области. При наличии сильного тороидального магнитного поля джет расширяется незначительно, что подтверждает возможность магнитного механизма коллимации астрофизических джетов. Угол раствора конуса джета зависит от величины магнитной индукции поля. Чем больше \({{B}_{\phi }}\), тем меньше угол отклонения потока. При определенных значениях \({{B}_{\phi }}\) на детекторе возможно возникновение кольцевых структур в распределении плотности, характеристики которых зависят от величины поля. Выполнено сравнение результатов моделирования с лабораторными джетами, возникающими в эксперименте на лазерной установке “Неодим”, и с ранее полученными результатами МГД моделирования образования джетов в полоидальном магнитном поле.</p></trans-abstract><kwd-group xml:lang="en"><kwd>astrophysical jets</kwd><kwd>MHD numerical simulation</kwd><kwd>laboratory astrophysics</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>астрофизические джеты</kwd><kwd>МГД численное моделирование</kwd><kwd>лабораторная астрофизика</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>A. S. Wilson and Y. Yang, Astrophys. J. 568, 133 (2002).</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>H. L. Marshall, B. P. Miller, D. S. Davis, E. S. Perlman, M. Wise, C. R. Canizares, and D. E. Harris, Astrophys. J. 564, 683 (2002).</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>H. L. Marshall, D. E. Harris, J. P. Grimes, J. J. Drake, et al., Astrophys. J. 549, L167 (2001).</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>G. S. Bisnovatyi-Kogan, B. V. Komberg, and A. M. Fridman, Soviet Astron. 13, 369 (1969).</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>G. S. Bisnovatyi-Kogan, Proc. 6th Int. Workshop of the Astronomical Observatory of Capodimonte (OAC 6), Capri, Italy, 1991 September 18–21, edited by L. Errico and A. A. Vittone (Dordrecht: Kluwer), Astrophys. Space Sci. Library 186, 369 (1993).</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>W. Fu, E. P. Liang, P. Tzeferacos, and D. Q. Lamb, High Energy Density Physics 17, 42 (2015).</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>K. N. Mitrofanov, V. I. Krauz, V. V. Myalton, V. P. Vinogradov, A. M. Kharrasov, and Yu. V. Vinogradova, Astron. Rep. 61, 138 (2017).</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>I. Yu. Kalashnikov, V. I. Krauz, and V. M. Chechetkin, J. Physics: Conference Series 798, id. 012008 (2017).</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>I. Yu. Kalashnikov, A. V. Dodin, I. V. Il’ichev, V. I. Krauz, and V. M. Chechetkin, Astron. Rep. 65, 477 (2021).</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>В. С. Бескин, Я. Н. Истомин, А. М. Киселев, В. И. Крауз и др., Изв. ВУЗов. Радиофизика 59, 1004 (2016).</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>B. Albertazzi, A. Ciardi, M. Nakatsutsumi, T. Vinci, et al. Science, 346, 325 (2014).</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>C. D. Gregory, B. Loupias, J. Waugh, P. Barroso, et al., Plasma Phys. Control. Fusion 50 (12), id. 124039 (2008).</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>C. D. Gregory, B. Loupias, J. Waugh, S. Dono, et al., Phys. Plasmas 17, id. 052708 (2010).</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>C. D. Gregory, A. Diziere, H. Aoki, H. Tanji, et al., High Energy Density Physics 11, 12 (2014).</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>V. S. Belyaev, G. S. Bisnovatyi-Kogan, A. I. Gromov, B. V. Zagreev, A. V. Lobanov, A. P. Matafonov, S.G. Moiseenko, and O. D. Toropina, Astron. Rep. 62, 162 (2018).</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>V. S. Belyaev, V. I. Vinogradov, A. P. Matafonov, A. M. Chekmarev, and A. G. Karabadzhak, Laser Phys. 16 (3), 477 (2006).</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>V. I. Mazhukin, A. V. Shapranov, M. M. Demin, A. A. Samokhin, and A. E. Zubko, Math. Montisnigri 37, 24 (2016).</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>V. I. Mazhukin, A. V. Shapranov, M. M. Demin, A. A. Sa-mokhin, and A. E. Zubko, Math. Montisnigri 38, 3 (2017).</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>V. I. Mazhukin, M. M. Demin, and A. V. Shapranov, A-ppl. Surface Sci. 302, 6 (2014).</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Л. Д. Ландау, Е. М. Лившиц, Электродинамика сплошных сред (М.: Наука, 1982).</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>D. D. Ryutov, R. P. Drake, and B. A. Remington, Astrophys. J. Suppl. 127, 465 (2000).</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>S. Bouquet, E. Falize, C. Michaut, C. D. Gregory, B. Loupias, T. Vinci, and M. Koenig, High Energy Density Physics 6, 368, 2010.</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>V. T. Zhukov, A. V. Zabrodin, and O. B. Feodoritova, Comp. Math. and Math. Physics 33, 1099 (1993).</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Э. Оран, Дж. Борис, Численное моделирование реагирующих потоков (М.: Мир, 1990).</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>J. P. Boris and D. L. Book, J. Comput. Phys. 11, 38 (1973).</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>V. V. Savelyev and V. M. Chechetkin, Astron. Rep. 39, 123 (1995).</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>V. V. Savelyev, Yu. M. Toropin, and V. M. Chechetkin, Astron. Rep. 40, 494 (1996).</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>O. D. Toropina, M. M. Romanova, Yu. M. Toropin, and R. V. E. Lovelace, Astrophys. J. 561, 964 (2001).</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>O. D. Toropina, M. M. Romanova, and R. V. E. Lovelace, Monthly Not. Roy. Astron. Soc. 420, 810 (2012).</mixed-citation></ref></ref-list></back></article>
