Validation of Depth-Averaged Flow Model Using Flat-Bottomed Benchmark Problems
Joint Authors
Seo, Il Won
Kim, Young Do
Song, Chang Geun
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-28
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
In this study, a shallow water flow code was developed and tested against four benchmark problems of practical relevance.
The results demonstrated that as the eddy viscosity increased, the velocity slope along the spanwise direction decreased, and the larger roughness coefficient induced a higher flow depth over the channel width.
The mass conservation rate was determined to be 99.2%.
This value was measured by the variation of the total volume of the fluid after a cylinder break.
As the Re increased to 10,000 in the internal recirculating flow problem, the intensity of the primary vortex had a clear trend toward the theoretically infinite Re value of −1.886.
The computed values of the supercritical flow evolved by the oblique hydraulic jump agreed well with the analytic solutions within an error bound of 0.2%.
The present model adopts the nonconservative form of shallow water equations.
These equations are weighted by the SU/PG scheme and integrated by a fully implicit method, which can reproduce physical problems with various properties.
The model provides excellent results under various flow conditions, and the solutions of benchmark tests can present criteria for the evaluation of various algorithmic approaches.
American Psychological Association (APA)
Seo, Il Won& Kim, Young Do& Song, Chang Geun. 2014. Validation of Depth-Averaged Flow Model Using Flat-Bottomed Benchmark Problems. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-1048702
Modern Language Association (MLA)
Seo, Il Won…[et al.]. Validation of Depth-Averaged Flow Model Using Flat-Bottomed Benchmark Problems. The Scientific World Journal No. 2014 (2014), pp.1-18.
https://search.emarefa.net/detail/BIM-1048702
American Medical Association (AMA)
Seo, Il Won& Kim, Young Do& Song, Chang Geun. Validation of Depth-Averaged Flow Model Using Flat-Bottomed Benchmark Problems. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-1048702
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1048702