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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Discrete and Continuous Models and Applied Computational Science</journal-id><journal-title-group><journal-title xml:lang="en">Discrete and Continuous Models and Applied Computational Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Discrete and Continuous Models and Applied Computational Science</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-4670</issn><issn publication-format="electronic">2658-7149</issn><publisher><publisher-name xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">8367</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>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Method of Artificial Viscosity on Unstructured Grids</article-title><trans-title-group xml:lang="ru"><trans-title>Метод адаптивной искусственной вязкости на неструктурированных сетках</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Popov</surname><given-names>I V</given-names></name><name xml:lang="ru"><surname>Попов</surname><given-names>Игорь Владимирович</given-names></name></name-alternatives><email>popov@imamod.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fryazinov</surname><given-names>I V</given-names></name><name xml:lang="ru"><surname>Фрязинов</surname><given-names>Игорь Владимирович</given-names></name></name-alternatives><email>friazinov@imamod.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Keldysh Institute of Applied Mathematics</institution></aff><aff><institution xml:lang="ru">ИПМ им. М.В. Келдыша РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2014-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2014</year></pub-date><issue>2</issue><issue-title xml:lang="en">NO2 (2014)</issue-title><issue-title xml:lang="ru">№2 (2014)</issue-title><fpage>230</fpage><lpage>233</lpage><history><date date-type="received" iso-8601-date="2016-09-08"><day>08</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="ru">Copyright ©; 2014, Попов И.В., Фрязинов И.В.</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Попов И.В., Фрязинов И.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/miph/article/view/8367">https://journals.rudn.ru/miph/article/view/8367</self-uri><abstract xml:lang="en">The paper presents a general description of a new method of artificial viscosity (AAV) for solving equations of gas dynamics. In a basis of a method are put research of stability finite difference schemes and classification of discontinuous desicions of gas dynamics equations. The method was adapted for the solution of problems on cartesian and unstructured meshes. With the help of the method a lot of gas dynamics problems were analyzed numerically, for example, the supersonic flow in a channel with a step was calculated.</abstract><trans-abstract xml:lang="ru">В статье представлено общее описание нового метода адаптивной искусственной вязкости (АИВ) решения уравнений газовой динамики. В основу метода положены исследование устойчивости разностных схем Лакса-Вендрофа и классификация разрывных решений уравнений газовой динамики. Метод адаптирован к решению задач как на ортогональных, так и на неструктурированных сетках. С помощью разработанного метода решён ряд задач, в том числе рассчитано сверхзвуковое течение газа в канале с уступом.</trans-abstract><kwd-group xml:lang="en"><kwd>method of adaptive artificial viscosity</kwd><kwd>equations of gas dynamics</kwd><kwd>unstructured grids</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метод адаптивной искусственной вязкости</kwd><kwd>уравнения газовой динамики</kwd><kwd>неструктурированные сетки</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Попов И. В., Фрязинов И. В. Сеточный метод решения уравнений газовой динамики с введением искусственной вязкости // Сеточные методы для краевых задач и приложения: Материалы Седьмого Всерос. семинара. - 2007. - С. 223-230.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Popov I. V., Fryazinov I. V. Method of Adaptive Artificial Viscosity for the Equations of Gas Dynamics on Triangular and Tetrahedral Grids // Mathematical Models and Computer Simulations. - 2013. - Vol. 5, No 1. - Pp. 50-62.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Разностные схемы на нерегулярных сетках / А. А. Самарский, А. В. Колдоба, Ю. А. Повещенко и др. - Минск: Критерий, 1996.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Liska R., Wendroff B. Comparison of Several Difference Schemes on 1D and 2D Test Problems for Euler Equations: Techrep LA-UR-01-6225 / LANL, Los Alamos. - 2001.</mixed-citation></ref></ref-list></back></article>
