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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">journal</journal-id>

      <journal-title-group>
        <journal-title>Вестник Объединенного института высоких температур</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Вестник ОИВТ РАН</abbrev-journal-title>
      </journal-title-group>

      <issn pub-type="epub">2658-669X</issn>

      <publisher>
        <publisher-name>ОИВТ РАН</publisher-name>
      </publisher>
    </journal-meta>

    <article-meta>
      <article-id pub-id-type="publisher-id">238</article-id>
      <article-id pub-id-type="doi"></article-id>

      <title-group>
        <article-title>О скорости затухания возмущений сильных ударных волн в~релятивистской гидродинамике</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>
            On the decay rate of perturbations of strong shock waves in relativistic hydrodynamics
          </trans-title>
        </trans-title-group>
      </title-group>

      <contrib-group>
        <contrib contrib-type="author">
          <name-alternatives>
            <name xml:lang="ru">
              <surname>Конюхов</surname>
              <given-names>Андрей Викторович</given-names>
            </name>
            <name xml:lang="en">
              <surname>Konyukhov</surname>
              <given-names>A.V.</given-names>
            </name>
          </name-alternatives>
          <xref ref-type="aff" rid="id1">ОИВТ РАН</xref>
        </contrib>

      </contrib-group>

      <aff-alternatives id="id1">
        <aff xml:lang="ru">
          <label>ОИВТ РАН</label>
          <institution>Объединенный институт высоких температур РАН (Москва, Россия)</institution>
          <addr-line>Москва, Россия</addr-line>
        </aff>
        <aff xml:lang="en">
          <label>JIHT RAS</label>
          <institution>Joint Institute for High Temperatures of the Russian Academy of Sciences (Moscow, Russia)</institution>
          <addr-line>Moscow, Russia</addr-line>
        </aff>
      </aff-alternatives>

      <pub-date publication-format="electronic" date-type="pub" pub-type="epub" iso-8601-date="2026-08-18">
        <day>18</day>
        <month>08</month>
        <year>2026</year>
      </pub-date>

      <volume>22</volume>
      <issue>4</issue>
      <fpage>16</fpage>
      <lpage>21</lpage>

      <abstract xml:lang="ru">
        <p>Расчеты ударных волн с различной интенсивностью и фактором Лоренца при наличии начального периодического  возмущения показали, что сильные релятивистские ударные волны, являясь устойчивыми согласно критериям линейной теории устойчивости ударных волн Дьякова и Конторовича, в вычислительном эксперименте показывают свойства нейтрально-устойчивых ударных волн: излучение акустических волн ударной волной, степенной закон затухания возмущений. Полученный результат объясняется конечностью амплитуды начального возмущения и тем, что предел высокой интенсивности ударной волны в случае идеального газа соответствует границе ее нейтральной устойчивости. </p>
      </abstract>

      <abstract xml:lang="en" abstract-type="summary">
        <p>Calculations of shock waves with varying intensities and Lorentz factors in the presence of an initial periodic perturbation have shown that strong relativistic shock waves, while being stable according to the D&apos;yakov and Kontorovich linear stability theory for shock waves, exhibit properties of neutrally stable shock waves in computational experiments: the emission of acoustic waves by the shock wave and a power-law decay of perturbations. The obtained result is explained by the finite amplitude of the initial perturbation and the fact that the high-intensity limit of a shock wave in an ideal gas corresponds to the boundary of its neutral stability.</p>
      </abstract>

      <kwd-group kwd-group-type="author-keywords" xml:lang="ru">
        <kwd>релятивистская гидродинамика</kwd>
        <kwd>ударные волны</kwd>
        <kwd>нейтральная устойчивость</kwd>
        <kwd>неустойчивость Дьякова-Конторовича</kwd>
        <kwd>численное моделирование</kwd>
      </kwd-group>

      <kwd-group kwd-group-type="author-keywords" xml:lang="en">
        <kwd>relativistic hydrodynamics</kwd>
        <kwd>shock waves</kwd>
        <kwd>neutral stability</kwd>
        <kwd>Dyakov-Kontorovich instability</kwd>
        <kwd>numerical simulation</kwd>
      </kwd-group>

    </article-meta>
  </front>
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</article>