Functional gradation of the morphological properties of TPMS channel for enhanced flow performance
A triply periodic minimal surface (TPMS) is a functional cellular structure that is designed by defining the signed distance field (SDF) for periodically repeated unit cells. This study proposes a novel design methodology to functionally grade the morphology of a TPMS channel for enhancement of the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S026412752201036X |
| _version_ | 1798006944745652224 |
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| author | Jun-Won Lee Seo-Hyeon Oh Eunji Jeon Jungwoo Kim Keun Park |
| author_facet | Jun-Won Lee Seo-Hyeon Oh Eunji Jeon Jungwoo Kim Keun Park |
| author_sort | Jun-Won Lee |
| collection | DOAJ |
| description | A triply periodic minimal surface (TPMS) is a functional cellular structure that is designed by defining the signed distance field (SDF) for periodically repeated unit cells. This study proposes a novel design methodology to functionally grade the morphology of a TPMS channel for enhancement of the fluid flow performance. Mathematical filtering was performed to change the SDF distribution through various combinations of multiple sigmoid functions, thus locally changing the TPMS geometry. The proposed local filtering was then implemented in the design of a TPMS flow channel to reduce the flow resistance in the inlet and outlet regions. Pressure drop tests were conducted using additively manufactured TPMS channels, and the results showed that the pressure drop decreased by 20% for the filtered design with a volume change of only 2.6%. Numerical simulations were performed to analyze the cause of reduced flow resistance in the locally filtered regions, and the results were verified through flow visualization experiments. Considering that a TPMS structure has a complex geometry and thus its manual modification is very difficult, the proposed filtering method offers an efficient approach for functionally changing the morphology of the TPMS structure. |
| first_indexed | 2024-04-11T13:02:28Z |
| format | Article |
| id | doaj.art-2e1efea90b474dfca51768fb51289f7e |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-11T13:02:28Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-2e1efea90b474dfca51768fb51289f7e2022-12-22T04:22:52ZengElsevierMaterials & Design0264-12752022-12-01224111413Functional gradation of the morphological properties of TPMS channel for enhanced flow performanceJun-Won Lee0Seo-Hyeon Oh1Eunji Jeon2Jungwoo Kim3Keun Park4Department of Mechanical System Design Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea; Mechatronics Research Institute, Samsung Electronics Co. Ltd., Gyeonggi-do 18448, Republic of KoreaDepartment of Mechanical System Design Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaDepartment of Mechanical System Design Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaDepartment of Mechanical System Design Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaDepartment of Mechanical System Design Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea; Corresponding author at: Department of Mechanical System Design Engineering Seoul National University of Science & Technology 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea.A triply periodic minimal surface (TPMS) is a functional cellular structure that is designed by defining the signed distance field (SDF) for periodically repeated unit cells. This study proposes a novel design methodology to functionally grade the morphology of a TPMS channel for enhancement of the fluid flow performance. Mathematical filtering was performed to change the SDF distribution through various combinations of multiple sigmoid functions, thus locally changing the TPMS geometry. The proposed local filtering was then implemented in the design of a TPMS flow channel to reduce the flow resistance in the inlet and outlet regions. Pressure drop tests were conducted using additively manufactured TPMS channels, and the results showed that the pressure drop decreased by 20% for the filtered design with a volume change of only 2.6%. Numerical simulations were performed to analyze the cause of reduced flow resistance in the locally filtered regions, and the results were verified through flow visualization experiments. Considering that a TPMS structure has a complex geometry and thus its manual modification is very difficult, the proposed filtering method offers an efficient approach for functionally changing the morphology of the TPMS structure.http://www.sciencedirect.com/science/article/pii/S026412752201036XTriply periodic minimal surface (TPMS)Design for additive manufacturingFunctionally graded materialPorous mediaFlow resistance |
| spellingShingle | Jun-Won Lee Seo-Hyeon Oh Eunji Jeon Jungwoo Kim Keun Park Functional gradation of the morphological properties of TPMS channel for enhanced flow performance Materials & Design Triply periodic minimal surface (TPMS) Design for additive manufacturing Functionally graded material Porous media Flow resistance |
| title | Functional gradation of the morphological properties of TPMS channel for enhanced flow performance |
| title_full | Functional gradation of the morphological properties of TPMS channel for enhanced flow performance |
| title_fullStr | Functional gradation of the morphological properties of TPMS channel for enhanced flow performance |
| title_full_unstemmed | Functional gradation of the morphological properties of TPMS channel for enhanced flow performance |
| title_short | Functional gradation of the morphological properties of TPMS channel for enhanced flow performance |
| title_sort | functional gradation of the morphological properties of tpms channel for enhanced flow performance |
| topic | Triply periodic minimal surface (TPMS) Design for additive manufacturing Functionally graded material Porous media Flow resistance |
| url | http://www.sciencedirect.com/science/article/pii/S026412752201036X |
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