{"id":233,"date":"2019-02-03T14:00:18","date_gmt":"2019-02-03T13:00:18","guid":{"rendered":"https:\/\/davidlannes.wordpress.com\/?p=233"},"modified":"2021-01-07T11:33:40","modified_gmt":"2021-01-07T10:33:40","slug":"generating-boundary-conditions-for-a-boussinesq-system","status":"publish","type":"post","link":"https:\/\/david-lannes.perso.math.cnrs.fr\/?p=233","title":{"rendered":"Generating boundary conditions for a Boussinesq system"},"content":{"rendered":"\n<p class=\"has-medium-font-size\">D. Lannes, L. Weynans, Nonlinearity 33 (2020), 6868                   <a href=\"https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/Lannes_2020_Nonlinearity_33_6868.pdf\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Downl (s\u2019ouvre dans un nouvel onglet)\">Downl<\/a><a href=\"https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/Lannes_2020_Nonlinearity_33_6868.pdf\">oad<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size\">We present a new method for the numerical implementation of generating boundary conditions for a one dimensional Boussinesq system. This method is based on a reformulation of the equations and a resolution of the dispersive boundary layer that is created at the boundary when the boundary conditions are non homogeneous. This method is implemented for a simple first order finite volume scheme and validated by several numerical simulations. Contrary to the other techniques that can be found in the literature, our approach does not cause any increase in computational time with respect to periodic boundary conditions<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"971\" src=\"https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/generating-1024x971.png\" alt=\"\" class=\"wp-image-369\" srcset=\"https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/generating-1024x971.png 1024w, https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/generating-300x285.png 300w, https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/generating-768x729.png 768w, https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/generating-788x748.png 788w, https:\/\/david-lannes.perso.math.cnrs.fr\/wp-content\/uploads\/2021\/01\/generating.png 1440w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D. Lannes, L. Weynans, Nonlinearity 33 (2020), 6868 Download We present a new method for the numerical implementation of generating boundary conditions for a one dimensional Boussinesq system. This method is based on a reformulation of the equations and a resolution of the dispersive boundary layer that is created at the boundary when the boundary [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5],"tags":[],"class_list":["post-233","post","type-post","status-publish","format-standard","hentry","category-publlished","category-recent"],"_links":{"self":[{"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=\/wp\/v2\/posts\/233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=233"}],"version-history":[{"count":5,"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=\/wp\/v2\/posts\/233\/revisions"}],"predecessor-version":[{"id":370,"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=\/wp\/v2\/posts\/233\/revisions\/370"}],"wp:attachment":[{"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/david-lannes.perso.math.cnrs.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}