| Title | Study on oxygen transport and titanium oxidation in coating cracks under parallel gas flow based on LBM modelling |
| Author | |
| Corresponding Author | Zhang, Song; Zeng, Yiping |
| Publication Years | 2023-04-01
|
| DOI | |
| Source Title | |
| ISSN | 1004-9541
|
| EISSN | 2210-321X
|
| Volume | 56 |
| Abstract | The oxygen transportation from surrounding air to coating cracks is an important factor in the oxidation and ignition of titanium alloy. In this work, the oxygen transport and surface oxidation of titanium in inclined cracks of coating under parallel airflow are studied with the lattice Boltzmann method (LBM). A boundary scheme of LBM about surface reaction is developed. The conversion factors are utilized to build the relationship between the physical scale and the lattice scale. The reliability of the LBM model is validated by the finite element method (FEM) method. The results show that the convective mass transport driven by the surrounding airflow and the vortex structure formed inside the crack are the two significant factors that influence the oxygen transport in cracks. The convective mass transfer plays a major role in oxygen transport when the inclination angle of the crack is small. For the cases with a large inclination angle, the oxygen transfer from the top to the bottom of the crack is mainly controlled by mass diffusion mechanism. The oxygen concentration in inclined cracks is generally less than that in vertical cracks, and oxidation and ignition of the substrate titanium might be more likely to occur in rel-atively vertical cracks.(c) 2022 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved. |
| Keywords | |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | Others
|
| Funding Project | National Key Research and Development Program of China[2019M660664]
; China Postdoctoral Science Foundation[72004141]
; National Natural Science Foundation of China[2019A1515111074]
; Basic and Applied Basic Research Foundation of Guangdong Province[2017-VII-0012-0108]
; null[2016YFB1102302]
|
| WOS Research Area | Engineering
|
| WOS Subject | Engineering, Chemical
|
| WOS Accession No | WOS:000955606800001
|
| Publisher | |
| ESI Research Field | CHEMISTRY
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/524040 |
| Department | Department of Mechanics and Aerospace Engineering |
| Affiliation | 1.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China 2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China 3.Tsinghua Univ, Inst Aero Engine, Beijing 100084, Peoples R China 4.Shenzhen Smart Hua Informat Technol Res Co Ltd, Shenzhen 518000, Peoples R China 5.Tsinghua Univ, Sch Aerosp Engn, Beijing 100084, Peoples R China 6.Chinese Acad Agr Mechanizat Sci, Beijing 100084, Peoples R China |
| First Author Affilication | Department of Mechanics and Aerospace Engineering |
| Recommended Citation GB/T 7714 |
Luo, Shengfeng,Zhang, Song,Zeng, Yiping,et al. Study on oxygen transport and titanium oxidation in coating cracks under parallel gas flow based on LBM modelling[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2023,56.
|
| APA |
Luo, Shengfeng,Zhang, Song,Zeng, Yiping,Zhang, Hui,Zheng, Lili,&Xu, Zhaopeng.(2023).Study on oxygen transport and titanium oxidation in coating cracks under parallel gas flow based on LBM modelling.CHINESE JOURNAL OF CHEMICAL ENGINEERING,56.
|
| MLA |
Luo, Shengfeng,et al."Study on oxygen transport and titanium oxidation in coating cracks under parallel gas flow based on LBM modelling".CHINESE JOURNAL OF CHEMICAL ENGINEERING 56(2023).
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