{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T07:06:26Z","timestamp":1774595186206,"version":"3.50.1"},"reference-count":41,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2020,6,23]],"date-time":"2020-06-23T00:00:00Z","timestamp":1592870400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Computation"],"abstract":"<jats:p>In this paper, we consider a coupled system of equations that describes simplified magnetohydrodynamics (MHD) problem in perforated domains. We construct a fine grid that resolves the perforations on the grid level in order to use a traditional approximation. For the solution on the fine grid, we construct approximation using the mixed finite element method. To reduce the size of the fine grid system, we will develop a Mixed Generalized Multiscale Finite Element Method (Mixed GMsFEM). The method differs from existing approaches and requires some modifications to represent the flow and magnetic fields. Numerical results are presented for a two-dimensional model problem in perforated domains. This model problem is a special case for the general 3D problem. We study the influence of the number of multiscale basis functions on the accuracy of the method and show that the proposed method provides a good accuracy with few basis functions.<\/jats:p>","DOI":"10.3390\/computation8020058","type":"journal-article","created":{"date-parts":[[2020,6,23]],"date-time":"2020-06-23T04:51:16Z","timestamp":1592887876000},"page":"58","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Mixed Generalized Multiscale Finite Element Method for a Simplified Magnetohydrodynamics Problem in Perforated Domains"],"prefix":"10.3390","volume":"8","author":[{"given":"Valentin","family":"Alekseev","sequence":"first","affiliation":[{"name":"Multiscale Model Reduction Laboratory, North-Eastern Federal University, 677007 Yakutsk, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qili","family":"Tang","sequence":"additional","affiliation":[{"name":"Hunan Key Laboratory for Computation and Simulation in Science and Engineering, Key Laboratory of Intelligent Computing &amp; Information Processing of Ministry of Education, School of Mathematics and Computational Science, Xiangtan University, Xiangtan 411105, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria","family":"Vasilyeva","sequence":"additional","affiliation":[{"name":"Multiscale Model Reduction Laboratory, North-Eastern Federal University, 677007 Yakutsk, Russia"},{"name":"Institute for Scientific Computation, Texas A&amp;M University, College Station, TX 77843, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eric T.","family":"Chung","sequence":"additional","affiliation":[{"name":"Department of Mathematics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yalchin","family":"Efendiev","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Texas A&amp;M University, College Station, TX 77843, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,23]]},"reference":[{"key":"ref_1","unstructured":"Moreau, R.J. 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