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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">dpg</journal-id><journal-title-group><journal-title xml:lang="ru">Динамические процессы в геосферах</journal-title><trans-title-group xml:lang="en"><trans-title>Dynamic Processes in Geospheres</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2222-8535</issn><issn pub-type="epub">2949-0995</issn><publisher><publisher-name>IDG RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26006/29490995_2023_15_1_54</article-id><article-id custom-type="elpub" pub-id-type="custom">dpg-143</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>КАТАСТРОФИЧЕСКИЕ ПРИРОДНЫЕ СОБЫТИЯ И ПАДЕНИЯ КОСМИЧЕСКИХ ТЕЛ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CATASTROPHIC NATURAL EVENTS AND FALLS OF SPACE BODIES</subject></subj-group></article-categories><title-group><article-title>ТРЕХМЕРНОЕ МОДЕЛИРОВАНИЕ ТОРМОЖЕНИЯ АСТЕРОИДА В АТМОСФЕРЕ ВЕНЕРЫ</article-title><trans-title-group xml:lang="en"><trans-title>3D NUMERICAL SIMULATION OF ASTEROID DECELERATION IN THE VENUS ATMOSPHERE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7471-838X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шувалов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shuvalov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ГНС лаборатории математического моделирования геофизических процессов</p></bio><email xlink:type="simple">valeryvshuvalov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9938-9428</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>Б. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>B. A.</given-names></name></name-alternatives><email xlink:type="simple">boris_a_ivanov@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт динамики геосфер имени академика М. А. Садовского РАН<country>Россия</country></aff><aff xml:lang="en">Sadovsky Institute for Dynamics of Geospheres of Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт динамики геосфер имени академика М.А. Садовского РАН<country>Россия</country></aff><aff xml:lang="en">Sadovsky Institute for Dynamics of Geospheres of Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>04</month><year>2023</year></pub-date><volume>15</volume><issue>1</issue><fpage>54</fpage><lpage>62</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шувалов В.В., Иванов Б.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Шувалов В.В., Иванов Б.А.</copyright-holder><copyright-holder xml:lang="en">Shuvalov V.V., Ivanov B.A.</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://www.dyngeo.ru/jour/article/view/143">https://www.dyngeo.ru/jour/article/view/143</self-uri><abstract><p>Приведены результаты трехмерных расчетов деформации, фрагментации и торможения астероида размером 1.5 км в атмосфере Венеры. Сравнение с результатами проведенных ранее двумерных расчетов показало, что используемая в двумерных расчетах осевая симметрия приводит к более сильному торможению фрагментов разрушенного астероида, чем в трехмерной геометрии, более соответствующей реальности. Полученная в трехмерных расчетах структура разрушенного астероида, состоящего из нескольких крупных и множества мелких фрагментов, по-видимому, может объяснить причину образования кратерных кластеров и темных и ярких пятен (splotches), наблюдаемых на поверхности Венеры.</p></abstract><trans-abstract xml:lang="en"><p>The results of calculations of deformation, fragmentation and deceleration of asteroids 1.5–5 km in size in the atmosphere of Venus are presented. The fraction of energy lost by asteroids during their passage through the atmosphere and the effective dimensions of an asteroid (or a cloud of its fragments) at the moment of impact on a solid surface are determined. It is shown that asteroids 1–2 km in size reach the surface of Venus in the form of a cloud of fragments with a diameter of 5–20 km, the kinetic energy of which is 10– 1000 times less than the initial energy of the asteroid. Such impacts do not appear to result in the formation of classical single craters or crater fields, but may be responsible for the formation of dark and bright spots (splotches) observed on the surface of Venus.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Венера</kwd><kwd>астероид</kwd><kwd>численное моделирование</kwd><kwd>ударная волна</kwd><kwd>фрагментация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Venus</kwd><kwd>asteroid</kwd><kwd>numerical simulation</kwd><kwd>shock wave</kwd><kwd>fragmentation</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено в рамках государственного задания Министерства науки и высшего образования РФ (тема № 122032900176-3)</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
