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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...

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Autores principales: Ren, Libo, Long, Xiangyi, Wang, Xiaowei, He, Hailan, Zhang, Manli, Lu, Hao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
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.
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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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