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  • 标题:Partitioned finite element method for structured discretization with mixed boundary conditions ⁎
  • 本地全文:下载
  • 作者:Andrea Brugnoli ; Flávio Luiz Cardoso-Ribeiro ; Ghislain Haine
  • 期刊名称:IFAC PapersOnLine
  • 印刷版ISSN:2405-8963
  • 出版年度:2020
  • 卷号:53
  • 期号:2
  • 页码:7557-7562
  • DOI:10.1016/j.ifacol.2020.12.1351
  • 语种:English
  • 出版社:Elsevier
  • 摘要:AbstractThe propagation of acoustic waves in a 2D geometrical domain under mixed boundary control is here described by means of the port-Hamiltonian (pH) formalism. A finite element based method is employed to obtain a consistently discretized model. To construct a model with mixed boundary control, two different methodologies are detailed: one employs Lagrange multipliers, the other relies on a virtual domain decomposition to interconnect models with different causalities. The two approaches are assessed numerically, by comparing the Hamiltonian and the state variables norm for progressively refined meshes.
  • 关键词:KeywordsAeroacousticsport-Hamiltonian systems (pHs)Partitioned Finite Element Method (PFEM)Mixed Boundary Control
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