Development of One Dimensional Implicit Dynamic Wave Model

Authors

  • Punpim Puttaraksa Department of Water Resources Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Nutchanart Sriwongsitanon Department of Water Resources Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Surachai Lipiwattanakarn Department of Water Resources Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

Saint-Venant equations, dynamic wave, implicit finite difference, nonlinear algebraic equations, backwater effect, tidal effect, Bang Pakong River Basin

Abstract

This study had an objective to develop a one dimensional implicit dynamic wave model. The model was named a dynamic wave model (DYMWAV). Visual Basic.Net program was used to develop the model programming. The DYMWAV model was applied to the Bang Pakong River Basin to
investigate the model performance for the flow situations affected by backwater and tide. The results showed that the DYMWAV model simulated these flow situations satisfactorily. The performance of the DYMWAV model was then compared with the performance of the Hydrodynamic Model, a module of the MIKE 11 model (MIKE 11 HD), which was generally accepted for unsteady flow simulation. This was carried out by applying the MIKE 11 HD model on the identical case study as applied to the DYMWAV model. The Manning’s n for each cross-section and each river reach calibrated from the DYMWAV model was applied to the MIKE 11 HD model. The simulation results from both models showed well corresponding flow hydrographs with little discrepancies. 

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Published

2004-06-30

How to Cite

Punpim Puttaraksa, Nutchanart Sriwongsitanon, and Surachai Lipiwattanakarn. 2004. “Development of One Dimensional Implicit Dynamic Wave Model”. Agriculture and Natural Resources 38 (3). Bangkok, Thailand:409-18. https://li01.tci-thaijo.org/index.php/anres/article/view/242976.

Issue

Vol. 38 No. 3 (2004): May-June

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.