中文版 | English
Title

Modified steady discrete unified gas kinetic scheme for multiscale radiative heat transfer

Author
Corresponding AuthorZhou, Xiafeng; Guo, Zhaoli
Publication Years
2023-04-01
DOI
Source Title
ISSN
0017-9310
EISSN
1879-2189
Volume203
Abstract
In this work, a steady discrete unified gas kinetic scheme (SDUGKS) is proposed to solve the steady ra-diative transfer equation (RTE), which is an improvement of the original SDUGKS [X. F. Zhou et al. , J. Comput. Phys. 423, 109767 (2020)]. The trapezoidal rule other than the rectangular rule used in the orig-inal SDUGKS is adopted in the proposed method in the reconstruction of energy flux across cell interface, just as the unsteady DUGKS. By this way, the length of the characteristic line of the modified SDUGKS establishes a relationship with the Courant-Friedrichs-Lewy (CFL) number in the transient DUGKS, which guarantees the accuracy of the modified SDUGKS. Furthermore, the length of the characteristic line is no longer limited by the extinction coefficient like in the original SDUGKS. As a result, the modified SDUGKS is more accurate than the original SDUGKS, and more efficient than the transient DUGKS for steady ra-diation problems. Furthermore, the smooth linear interpolation and the van Leer limiter are used for problems with smooth and discontinuous optical thicknesses, respectively. Several numerical tests with optical thickness varying from optical thin to thick are conducted to validate the present scheme. Nu-merical results demonstrate that the modified SDUGKS can serve as an effective tool in the study of multiscale steady radiative heat transfer in participating media.(c) 2022 Elsevier Ltd. All rights reserved.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Others
Funding Project
Fundamental Research Funds for the Central Universities[HUST: 2019kfyXMBZ040] ; National Natural Science Foundation of China["12005073","12002131"] ; China Postdoctoral Science Foundation[2021M701565]
WOS Research Area
Thermodynamics ; Engineering ; Mechanics
WOS Subject
Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS Accession No
WOS:000913687400001
Publisher
ESI Research Field
ENGINEERING
Scopus EID
2-s2.0-85145197214
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/425197
DepartmentDepartment of Mechanics and Aerospace Engineering
Affiliation
1.Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China
2.Huazhong Univ Sci & Technol, Inst Interdisciplinary Res Math & Appl Sci, Wuhan 430074, Peoples R China
3.Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Dept Nucl Engn & Technol, Wuhan 430074, Peoples R China
4.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China
Recommended Citation
GB/T 7714
Song, Xinliang,Zhang, Yue,Zhou, Xiafeng,et al. Modified steady discrete unified gas kinetic scheme for multiscale radiative heat transfer[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2023,203.
APA
Song, Xinliang,Zhang, Yue,Zhou, Xiafeng,Zhang, Chuang,&Guo, Zhaoli.(2023).Modified steady discrete unified gas kinetic scheme for multiscale radiative heat transfer.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,203.
MLA
Song, Xinliang,et al."Modified steady discrete unified gas kinetic scheme for multiscale radiative heat transfer".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 203(2023).
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