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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">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</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">12842</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></subject></subj-group></article-categories><title-group><article-title xml:lang="en">DETERMINATION DE LA VITESSE D'ECOULEMENT D'UN MILIEU GRANULAIRE PAR LA METHODE DE GALERKINE</article-title><trans-title-group xml:lang="ru"><trans-title>DETERMINATION DE LA VITESSE D'ECOULEMENT D'UN MILIEU GRANULAIRE PAR LA METHODE DE GALERKINE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name><surname>GBAGUIDI</surname><given-names>Victor S</given-names></name><email>-</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>ALODEHOU</surname><given-names>Eustache</given-names></name><email>-</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>ADANHOUNME</surname><given-names>Villévo</given-names></name><email>-</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>GBAGUIDI</surname><given-names>Gérard Aissè</given-names></name><bio xml:lang="ru">Laboratoire d'énergétique et de mécanique  appliquée ( LEMA) , Ecole Polytechnique   d'Abomey-Calavi / Université d'Abomey-Calavi Bp 2009 Cotonou (République du Bénin)</bio><email>-</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff id="aff1"><institution></institution></aff><aff-alternatives id="aff2"><aff><institution xml:lang="en"></institution></aff><aff><institution xml:lang="ru">Laboratoire d'énergétique et de mécanique  appliquée ( LEMA) , Ecole Polytechnique   d'Abomey-Calavi / Université d'Abomey-Calavi Bp 2009 Cotonou (République du Bénin)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2009-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2009</year></pub-date><issue>4</issue><issue-title xml:lang="en">NO4 (2009)</issue-title><issue-title xml:lang="ru">№4 (2009)</issue-title><fpage>34</fpage><lpage>37</lpage><history><date date-type="received" iso-8601-date="2016-09-12"><day>12</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2016, Structural Mechanics of Engineering Constructions and Buildings</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2016, Строительная механика инженерных конструкций и сооружений</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</copyright-holder><copyright-holder xml:lang="ru">Строительная механика инженерных конструкций и сооружений</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/12842">https://journals.rudn.ru/structural-mechanics/article/view/12842</self-uri><abstract xml:lang="ru">The difficulties bound to the transport of the granular materials in the industry brought numerous authors to propose some models in order to control the out-flow of these materials. The works of POLDERMAN permit to determine the field of velocity of the out-flow in mass of
the unalterable granular materials from a mathematical model based on hypothesis according to which the angle ψ between the major main axis of the constraint and the half angle θ at the summit of a conical hopper is a linear function of  θ  with the following form: ψ = C1θ .  For a given value of the ray r, he determines the out-flow velocity of the continuity equation by means of the unknown velocity for ψ = 0. Using the approached solution of the continuity equation calculated by the GALERKINE method, we determine the absolute error depending of the unknown velocity. With the given approximation precision the constraint on the unknown velocity is calculated.</abstract><kwd-group xml:lang="en"><kwd>Mots clés : 1- matériaux granulaires indéformables- 2 champ de vitesse -3 axe majeur</kwd><kwd>Keywords: 1 - unalterable granular surroundings - 2 field of speed -3 major axis</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>B i b l i o g r a p h i e [1] B Yacoub, JC ROTH, en 1996,  Modélisation du comportement de l'interface matériau granulaire-paroi dans un écoulement gravitaire .</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>[2] Abriak N.E Gouvres R, 1992, Ecoulement d'un matériau granulaire à travers un orifice Passage du milieu discontinu au milieu continu. Approche expérimentale  Rev. Franç Géotech. N°65, pp 29-35.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>[3] Cambou B . , Analyse du comportement des milieux granulaires basées sur leur nature discontinue  Revue Française de Géotechnique n° 14, pp. 5-24.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>[4] Darves F. Labanieh S., 1980,   Comportement mécanique des milieux granulaires en liaison avec leur structure CR 15ième coll. GFR., Paris, pp. 329-351</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>[5] Terzaghi K . Peckb R. B. , Mécanique des sols appliquée  Dunod Ed. , Paris , 565.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>[6 ] Sid Mohamed  (1998) « Approche analytique de l'écoulement en masse d'un matériau granulaire dans une trémie » . Thèse de Doctorat en Génie-civil  soutenu le 18 février 1998.</mixed-citation></ref></ref-list></back></article>
