Elastic Mesh Deformation for Internal Flows with Moving Boundaries

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dc.contributor.advisorMalan, Arnaud
dc.contributor.authorMohammed, Ali Alaa Abdelkareem Awad
dc.date.accessioned2024-05-20T11:43:46Z
dc.date.available2024-05-20T11:43:46Z
dc.date.issued2023
dc.date.updated2024-05-17T12:40:08Z
dc.description.abstractThis project aims to study elastic-based mesh deformation for internal flow problems with obstructions. As such a tank with a flexible internal beam serves as the tested case employed in this work. As such a computer code was developed and the elastic deformation was implemented via the Finite Element Galerkin method with two methods to control the element's distortion near the moving boundaries, Jacobian-based stiffening modification and the distance criterion method. Verification of the scheme was performed by conducting the same test as described in a journal and comparing the obtained results. The project focused on mesh deformation resulting from prescribing the displacements to the inner boundaries of the beam. The results were validated by assessing mesh quality using aspect ratio as a metric, for the 2D unstructured triangular mesh, the element mesh quality showed improvement when the Jacobian-based stiffening method was applied, which involved excluding the determinant of the Jacobian from the stiffness matrix formulation. Similarly, for the 3D unstructured mesh, the aspect ratio improved from elements collapsing to a value close to 1. In both cases, optimal mesh quality was achieved using the distance criterion method for 2D and 3D structured meshes. Specifically, for the 2D structured mesh, the aspect ratio demonstrated improvement, while for the 3D structured mesh, a further enhancement was also observed.
dc.identifier.apacitationMohammed, A. A. A. A. (2023). <i>Elastic Mesh Deformation for Internal Flows with Moving Boundaries</i>. (). ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/39657en_ZA
dc.identifier.chicagocitationMohammed, Ali Alaa Abdelkareem Awad. <i>"Elastic Mesh Deformation for Internal Flows with Moving Boundaries."</i> ., ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering, 2023. http://hdl.handle.net/11427/39657en_ZA
dc.identifier.citationMohammed, A.A.A.A. 2023. Elastic Mesh Deformation for Internal Flows with Moving Boundaries. . ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering. http://hdl.handle.net/11427/39657en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Mohammed, Ali Alaa Abdelkareem Awad AB - This project aims to study elastic-based mesh deformation for internal flow problems with obstructions. As such a tank with a flexible internal beam serves as the tested case employed in this work. As such a computer code was developed and the elastic deformation was implemented via the Finite Element Galerkin method with two methods to control the element's distortion near the moving boundaries, Jacobian-based stiffening modification and the distance criterion method. Verification of the scheme was performed by conducting the same test as described in a journal and comparing the obtained results. The project focused on mesh deformation resulting from prescribing the displacements to the inner boundaries of the beam. The results were validated by assessing mesh quality using aspect ratio as a metric, for the 2D unstructured triangular mesh, the element mesh quality showed improvement when the Jacobian-based stiffening method was applied, which involved excluding the determinant of the Jacobian from the stiffness matrix formulation. Similarly, for the 3D unstructured mesh, the aspect ratio improved from elements collapsing to a value close to 1. In both cases, optimal mesh quality was achieved using the distance criterion method for 2D and 3D structured meshes. Specifically, for the 2D structured mesh, the aspect ratio demonstrated improvement, while for the 3D structured mesh, a further enhancement was also observed. DA - 2023 DB - OpenUCT DP - University of Cape Town KW - Engineering LK - https://open.uct.ac.za PY - 2023 T1 - Elastic Mesh Deformation for Internal Flows with Moving Boundaries TI - Elastic Mesh Deformation for Internal Flows with Moving Boundaries UR - http://hdl.handle.net/11427/39657 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/39657
dc.identifier.vancouvercitationMohammed AAAA. Elastic Mesh Deformation for Internal Flows with Moving Boundaries. []. ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering, 2023 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/39657en_ZA
dc.language.rfc3066Eng
dc.publisher.departmentDepartment of Mechanical Engineering
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.subjectEngineering
dc.titleElastic Mesh Deformation for Internal Flows with Moving Boundaries
dc.typeThesis / Dissertation
dc.type.qualificationlevelMasters
dc.type.qualificationlevelMSc
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