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Erosion Investigation of Dimple Wall using Erosion-Coupled Dynamic Mesh
[Image: see text] The erosion of the dimple walls is investigated experimentally and numerically. A mathematical simulation framework was proposed to describe quantitatively the morphological evolution of the dimple wall quantitatively. As the wall shape continues to evolve, the wall shear stress, m...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10601410/ https://www.ncbi.nlm.nih.gov/pubmed/37901563 http://dx.doi.org/10.1021/acsomega.3c04805 |
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author | Ren, Libo Long, Xiangyi Wang, Xiaowei He, Hailan Zhang, Manli Lu, Hao |
author_facet | Ren, Libo Long, Xiangyi Wang, Xiaowei He, Hailan Zhang, Manli Lu, Hao |
author_sort | Ren, Libo |
collection | PubMed |
description | [Image: see text] The erosion of the dimple walls is investigated experimentally and numerically. A mathematical simulation framework was proposed to describe quantitatively the morphological evolution of the dimple wall quantitatively. As the wall shape continues to evolve, the wall shear stress, mesh deformation, and erosion rate would decrease and gradually tend to be constant. Two distinct regions have been identified along the dimple’s windward wall surface: the wall’s central area and the lateral area. In the central region, the wall profile flare occurs mainly in the early stage. In the lateral region, profile flare occurs mainly in the later stages of erosion. The microhardness of the wall surface shows a positive correlation with the erosion rate. The liquid–solid two-phase impinges on the wall at a smaller angle, and the wall material removal process is mainly based on the microcutting and slip mechanism. The results provide theoretical implications for the design of dimple-shaped, wide-channel welded plate heat exchangers. |
format | Online Article Text |
id | pubmed-10601410 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-106014102023-10-27 Erosion Investigation of Dimple Wall using Erosion-Coupled Dynamic Mesh Ren, Libo Long, Xiangyi Wang, Xiaowei He, Hailan Zhang, Manli Lu, Hao ACS Omega [Image: see text] The erosion of the dimple walls is investigated experimentally and numerically. A mathematical simulation framework was proposed to describe quantitatively the morphological evolution of the dimple wall quantitatively. As the wall shape continues to evolve, the wall shear stress, mesh deformation, and erosion rate would decrease and gradually tend to be constant. Two distinct regions have been identified along the dimple’s windward wall surface: the wall’s central area and the lateral area. In the central region, the wall profile flare occurs mainly in the early stage. In the lateral region, profile flare occurs mainly in the later stages of erosion. The microhardness of the wall surface shows a positive correlation with the erosion rate. The liquid–solid two-phase impinges on the wall at a smaller angle, and the wall material removal process is mainly based on the microcutting and slip mechanism. The results provide theoretical implications for the design of dimple-shaped, wide-channel welded plate heat exchangers. American Chemical Society 2023-10-13 /pmc/articles/PMC10601410/ /pubmed/37901563 http://dx.doi.org/10.1021/acsomega.3c04805 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Ren, Libo Long, Xiangyi Wang, Xiaowei He, Hailan Zhang, Manli Lu, Hao Erosion Investigation of Dimple Wall using Erosion-Coupled Dynamic Mesh |
title | Erosion Investigation
of Dimple Wall using Erosion-Coupled
Dynamic Mesh |
title_full | Erosion Investigation
of Dimple Wall using Erosion-Coupled
Dynamic Mesh |
title_fullStr | Erosion Investigation
of Dimple Wall using Erosion-Coupled
Dynamic Mesh |
title_full_unstemmed | Erosion Investigation
of Dimple Wall using Erosion-Coupled
Dynamic Mesh |
title_short | Erosion Investigation
of Dimple Wall using Erosion-Coupled
Dynamic Mesh |
title_sort | erosion investigation
of dimple wall using erosion-coupled
dynamic mesh |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10601410/ https://www.ncbi.nlm.nih.gov/pubmed/37901563 http://dx.doi.org/10.1021/acsomega.3c04805 |
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