An Effective Mesh Deformation Approach for Hull Shape Design by Optimization
A method for the morphing of surface/volume meshes suitable to be used in hydrodynamic shape optimization is proposed. Built in the <i>OpenFOAM</i> environment, it relies on a Laplace equation that propagates the modifications of the surface boundaries, realized by applying a free-form d...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/9/10/1107 |
| _version_ | 1797514164591132672 |
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| author | Diego Villa Francesco Furcas Jan Oscar Pralits Giuliano Vernengo Stefano Gaggero |
| author_facet | Diego Villa Francesco Furcas Jan Oscar Pralits Giuliano Vernengo Stefano Gaggero |
| author_sort | Diego Villa |
| collection | DOAJ |
| description | A method for the morphing of surface/volume meshes suitable to be used in hydrodynamic shape optimization is proposed. Built in the <i>OpenFOAM</i> environment, it relies on a Laplace equation that propagates the modifications of the surface boundaries, realized by applying a free-form deformation to a subdivision surface description of the geometry, into the computational volume mesh initially built through a combination of <i>BlockMesh</i> with <i>cfMesh</i>. The feasibility and robustness of this mesh morphing technique, used as a computationally efficient pre-processing tool, is demonstrated in the case of the resistance minimization of the DTC hull. All the hull variations generated within a relatively large design space are efficiently and successfully realized, i.e., without mesh inconsistencies and quality issues, only by deforming the initial mesh of the reference geometry. Coupled with a surrogate model approach, a significant reduction in the calm water resistance, in the extent of 10%, has been achieved in a reasonable computational time. |
| first_indexed | 2024-03-10T06:27:45Z |
| format | Article |
| id | doaj.art-40b80ad00c964235b1bf95249ba3997d |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T06:27:45Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-40b80ad00c964235b1bf95249ba3997d2023-11-22T18:45:39ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-10-01910110710.3390/jmse9101107An Effective Mesh Deformation Approach for Hull Shape Design by OptimizationDiego Villa0Francesco Furcas1Jan Oscar Pralits2Giuliano Vernengo3Stefano Gaggero4Department of Electrical, Electronic and Telecommunications Engineering and Naval Architecture (DITEN), University of Genova, Via Montallegro 1, 16126 Genova, ItalyDepartment of Electrical, Electronic and Telecommunications Engineering and Naval Architecture (DITEN), University of Genova, Via Montallegro 1, 16126 Genova, ItalyDepartment of Civil, Chemical and Environmental Engineering (DICCA),University of Genova, Via Montallegro 1, 16126 Genova, ItalyDepartment of Electrical, Electronic and Telecommunications Engineering and Naval Architecture (DITEN), University of Genova, Via Montallegro 1, 16126 Genova, ItalyDepartment of Electrical, Electronic and Telecommunications Engineering and Naval Architecture (DITEN), University of Genova, Via Montallegro 1, 16126 Genova, ItalyA method for the morphing of surface/volume meshes suitable to be used in hydrodynamic shape optimization is proposed. Built in the <i>OpenFOAM</i> environment, it relies on a Laplace equation that propagates the modifications of the surface boundaries, realized by applying a free-form deformation to a subdivision surface description of the geometry, into the computational volume mesh initially built through a combination of <i>BlockMesh</i> with <i>cfMesh</i>. The feasibility and robustness of this mesh morphing technique, used as a computationally efficient pre-processing tool, is demonstrated in the case of the resistance minimization of the DTC hull. All the hull variations generated within a relatively large design space are efficiently and successfully realized, i.e., without mesh inconsistencies and quality issues, only by deforming the initial mesh of the reference geometry. Coupled with a surrogate model approach, a significant reduction in the calm water resistance, in the extent of 10%, has been achieved in a reasonable computational time.https://www.mdpi.com/2077-1312/9/10/1107mesh morphingfree-form deformationsubdivision surfacesoptimizationdesign by optimizationCFD |
| spellingShingle | Diego Villa Francesco Furcas Jan Oscar Pralits Giuliano Vernengo Stefano Gaggero An Effective Mesh Deformation Approach for Hull Shape Design by Optimization Journal of Marine Science and Engineering mesh morphing free-form deformation subdivision surfaces optimization design by optimization CFD |
| title | An Effective Mesh Deformation Approach for Hull Shape Design by Optimization |
| title_full | An Effective Mesh Deformation Approach for Hull Shape Design by Optimization |
| title_fullStr | An Effective Mesh Deformation Approach for Hull Shape Design by Optimization |
| title_full_unstemmed | An Effective Mesh Deformation Approach for Hull Shape Design by Optimization |
| title_short | An Effective Mesh Deformation Approach for Hull Shape Design by Optimization |
| title_sort | effective mesh deformation approach for hull shape design by optimization |
| topic | mesh morphing free-form deformation subdivision surfaces optimization design by optimization CFD |
| url | https://www.mdpi.com/2077-1312/9/10/1107 |
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