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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S2079562922030162</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-190</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Ядерный синтез</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Nuclear Fusion</subject></subj-group></article-categories><title-group><article-title>Влияние возмущений плотности на устойчивость внутренней границы льда в мишениях ЛТС</article-title><trans-title-group xml:lang="en"><trans-title>Influence of Density Perturbations on the Stability of the Inner Ice Boundary in Ice Targets</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Городничев</surname><given-names>К. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorodnichev</surname><given-names>K. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 127055</p></bio><bio xml:lang="en"><p>Moscow, 127055</p></bio><email xlink:type="simple">cyrgo85@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глазырин</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Glazyrin</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 127055</p></bio><bio xml:lang="en"><p>Moscow, 127055</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильницкий</surname><given-names>Д. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilnitsky</surname><given-names>D. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 127055</p></bio><bio xml:lang="en"><p>Moscow, 127055</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куратов</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuratov</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 127055</p></bio><bio xml:lang="en"><p>Moscow, 127055</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГУП ВНИИА им. Н.Л. Духова<country>Россия</country></aff><aff xml:lang="en">Dukhov Research Institute of Automatics (VNIIA)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>04</month><year>2024</year></pub-date><volume>14</volume><issue>2</issue><fpage>109</fpage><lpage>118</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Городничев К.Е., Глазырин С.И., Ильницкий Д.К., Куратов С.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Городничев К.Е., Глазырин С.И., Ильницкий Д.К., Куратов С.Е.</copyright-holder><copyright-holder xml:lang="en">Gorodnichev K.E., Glazyrin S.I., Ilnitsky D.K., Kuratov S.E.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://npe.elpub.ru/jour/article/view/190">https://npe.elpub.ru/jour/article/view/190</self-uri><abstract><p>На текущий день не удается получить зажигание мишени лазерного термоядерного синтеза. Причины этого явления до конца не изучены. Один из наиболее важных факторов, влияющих на снижение выхода, – развитие гидродинамических неустойчивостей, обусловленных геометрическими неоднородностями (шероховатость, присутствие элементов, нарушающих симметрию, и т.п.). В результате их наличия возникает объемное поле возмущения плотности. В данной работе представлены результаты теоретического исследования задачи о влиянии возмущений плотности на устойчивость границы области при ее ускоренном движении. Проведено сравнение с результатами численного анализа.</p></abstract><trans-abstract xml:lang="en"><p>The inertial confinement fusion has not been achieved yet. The reasons for this phenomenon are not fully understood. In our opinion, the main factor influencing the decrease in the yield is the evolution of hydrodynamic instabilities due to geometric inhomogeneities (surface roughness, the presence of asymmetric elements etc.). The perturbed density field can result from these inhomogeneities. The results of a theoretical study of the influence of density perturbations on the stability of the boundary under accelerated motion are presented in this paper. The performed numerical simulations are compared with theoretical results.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидродинамическая неустойчивость</kwd><kwd>ЛТС</kwd><kwd>возмущение плотности</kwd><kwd>ускоренное движение</kwd><kwd>устойчивость границы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrodynamic instability</kwd><kwd>ICF</kwd><kwd>density inhomogeneities</kwd><kwd>accelerated motion</kwd><kwd>contact discontinuity instability</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kline J. et al. // Nucl. Fusion. 2019. V. 59. P. 112018.</mixed-citation><mixed-citation xml:lang="en">Kline J. et al. // Nucl. Fusion. 2019. 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