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On Eulerian-Lagrangian-Lagrangian Method for Solving Fluid-Structure Interaction Problem

Han, Dong
http://orcid.org/0000-0003-2393-5784
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595845627308018

Abstract Details

2020, PhD, University of Cincinnati, Engineering and Applied Science: Engineering Mechanics.
This dissertation proposed an Eulerian-Lagrangian-Lagrangian (ELL) method for solving FSI problems with an improved solution. The structures in ELL can be rigid or flexible, static or moving. The ELL method improves the accuracy of the solution in comparison with the regular immersed finite element method (IFEM) with bulk solid. The ELL for the thin structure is validated by solving, when conventional IFEM fails, two-dimensional (2D) and three-dimensional (3D) FSI problems with both rigid and flexible thin solid structures. The studies of mesh refinement, spatial convergence, and influence of the Lagrangian fluid domain are conducted in 2D and 3D cases with rigid structures. In the 2D flexible numerical examples, the continuum based beam (CB beam) element is adopted to model the thin structure. In the 3D flexible cases, the degenerated continuum-based shell (CB shell) element is employed.
Gui-Rong Liu, Ph.D. (Committee Chair)
Shaaban Abdallah, Ph.D. (Committee Member)
Prashant Khare, Ph.D. (Committee Member)
143 p.
Engineering
fluid structure interaction; Eulerian-Lagrangian-Lagrangian; finite element method; thin structure

Recommended Citations

Citations

  • Han, D. (2020). On Eulerian-Lagrangian-Lagrangian Method for Solving Fluid-Structure Interaction Problem [Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595845627308018

    APA Style (7th edition)

  • Han, Dong. On Eulerian-Lagrangian-Lagrangian Method for Solving Fluid-Structure Interaction Problem. 2020. University of Cincinnati, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595845627308018.

    MLA Style (8th edition)

  • Han, Dong. "On Eulerian-Lagrangian-Lagrangian Method for Solving Fluid-Structure Interaction Problem." Doctoral dissertation, University of Cincinnati, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595845627308018

    Chicago Manual of Style (17th edition)

ucin1595845627308018
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This open access ETD is published by University of Cincinnati and OhioLINK.