The Numerical Analysis of the Flow on the Smooth and Nonsmooth Boundaries by IBEMDBIEM
Joint Authors
Xu, Gang
Zhao, Guangwei
Chen, Jing
Wang, Shuqi
Shi, Weichao
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-07
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The value of the tangential velocity on the Boundary Value Problem (BVP) is inaccurate when comparing the results with analytical solutions by Indirect Boundary Element Method (IBEM), especially at the intersection region where the normal vector is changing rapidly (named nonsmooth boundary).
In this study, the singularity of the BVP, which is directly arranged in the center of the surface of the fluid computing domain, is moved outside the computational domain by using the Desingularized Boundary Integral Equation Method (DBIEM).
In order to analyze the accuracy of the IBEM/DBIEM and validate the above-mentioned problem, three-dimensional uniform flow over a sphere has been presented.
The convergent study of the presented model has been investigated, including desingularized distance in the DBIEM.
Then, the numerical results were compared with the analytical solution.
It was found that the accuracy of velocity distribution in the flow field has been greatly improved at the intersection region, which has suddenly changed the boundary surface shape of the fluid domain.
The conclusions can guide the study on the flow over nonsmooth boundaries by using boundary value method.
American Psychological Association (APA)
Xu, Gang& Zhao, Guangwei& Chen, Jing& Wang, Shuqi& Shi, Weichao. 2019. The Numerical Analysis of the Flow on the Smooth and Nonsmooth Boundaries by IBEMDBIEM. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1195464
Modern Language Association (MLA)
Xu, Gang…[et al.]. The Numerical Analysis of the Flow on the Smooth and Nonsmooth Boundaries by IBEMDBIEM. Mathematical Problems in Engineering No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1195464
American Medical Association (AMA)
Xu, Gang& Zhao, Guangwei& Chen, Jing& Wang, Shuqi& Shi, Weichao. The Numerical Analysis of the Flow on the Smooth and Nonsmooth Boundaries by IBEMDBIEM. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1195464
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195464