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<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">Plasma Physics Reports</journal-id><journal-title-group><journal-title xml:lang="en">Plasma Physics Reports</journal-title><trans-title-group xml:lang="ru"><trans-title>Физика плазмы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0367-2921</issn><issn publication-format="electronic">3034-6371</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">668547</article-id><article-id pub-id-type="doi">10.31857/S0367292123600218</article-id><article-id pub-id-type="edn">VFFSDA</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>LOW TEMPERATURE PLASMA</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НИЗКОТЕМПЕРАТУРНАЯ ПЛАЗМА</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Influence of Current and Interelectrode Gap on Characteristics of Longitudinal–Transverse Discharge in a Supersonic Airflow</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние тока и межэлектродного расстояния на характеристики продольно-поперечного разряда в сверхзвуковом потоке воздуха</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Perevoshchikov</surname><given-names>E. E.</given-names></name><name xml:lang="ru"><surname>Перевощиков</surname><given-names>Е. Е.</given-names></name></name-alternatives><email>af@jiht.org</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Firsov</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Фирсов</surname><given-names>А. А.</given-names></name></name-alternatives><email>valentin.bityurin@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Joint Institute for High Temperatures, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Объединенный институт высоких температур РАН (ОИВТ РАН)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-05-01" publication-format="electronic"><day>01</day><month>05</month><year>2023</year></pub-date><volume>49</volume><issue>5</issue><issue-title xml:lang="ru"/><fpage>488</fpage><lpage>494</lpage><history><date date-type="received" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Российская академия наук</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0367-2921/article/view/668547">https://journals.eco-vector.com/0367-2921/article/view/668547</self-uri><abstract xml:lang="en"><p>This work is devoted to the problem of stable operation of a longitudinal–transverse discharge in a supersonic flow and its parameters. A longitudinal–transverse discharge in an air flow with parameters M = 2, V ~ 500 m/s, Tg = 170 K, Pst = 22 kPa is considered. High-speed imaging and data acquisition were used to obtain data on the variation of the discharge length, current, and voltage over time. The main purpose of the work was to investigate the dynamics of DC discharge and to describe relations between its geometrical and electrical parameters. Experiments were aimed at obtaining detailed data on the influence of interelectrode distance and discharge current on discharge length and, consequently, on voltage and power release, as well as to determine typical breakdown frequencies depending of discharge parameters. The electrode fall voltage was determined.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181323808400">Изучена проблема устойчивой работы продольно-поперечного разряда в сверхзвуковом потоке и его параметры. Рассмотрен продольно-поперечный дуговой разряд в воздушном потоке с параметрами <italic>M</italic> = 2, <italic>V</italic> ~ 500 м/с, <italic>T<sub>g</sub></italic> = 170 K, <italic>P<sub>st</sub></italic> = 22 кПа. Для получения данных об изменении длины разряда, тока и напряжения во времени использовались высокоскоростная съемка и запись осциллограмм. Исследована динамика разряда постоянного тока и описаны связи между его геометрическими и электрическими параметрами. Эксперименты были направлены на получение подробных данных о влиянии межэлектродного расстояния и тока на длину разряда и, соответственно, на напряжение и выделяемую мощность, а также на определение типичных частот перепробоя в зависимости от параметров разряда. Также было определено падение напряжения в приэлектродных слоях.</p></trans-abstract><kwd-group xml:lang="en"><kwd>supersonic flow</kwd><kwd>longitudinal–transverse discharge</kwd><kwd>electric discharge</kwd><kwd>plasma aerodynamics</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сверхзвуковой поток</kwd><kwd>продольно-поперечный разряд</kwd><kwd>электрический разряд</kwd><kwd>плазменная аэродинамика</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Poggie J., McLaughlin T., Leonov S. // Aerospace-Lab J. 2015. № 10. P. AL10-01. https://doi.org/10.12762/2015.AL10-01</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Ershov A.P., Surkont O.S., Timofeev I.B., Shibkov V.M., Chernikov V.A. // High Temperature. 2004. V. 42. 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