NUMERIC SOLUTION FOR OBTENTION OF THE LINE FLOW PROFILE IN NATURAL CHANNELS

Authors

  • Luiz Fernando Coutinho de Oliveira UFG
  • Sérgio Ricardo Guimarães D'Oliveira UNIFENAS
  • Marco Aurélio Monteiro de Lima UFG

Keywords:

Open channel, gradually varied flow, backwater curve

Abstract

The aim of this research was to obtain the line flow profile as affected by a weir installed on a natural channel. The channel flow was measured through a suppressed weir. In order to obtain the channel geometric parameters a profile cross section survey was performed at several points, adjusting equations of the power type to describe the top width and the flow area as a function of depth. To obtain the line flow, the numeric solution of Bernoulli equation was used through the finite differences technique. The line flow profile was similar to that observed in the field, suggesting the adequacy of the proposed methodology.

KEY-WORDS: Open channel; gradually varied flow; backwater curve.

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Published

2007-12-19

How to Cite

OLIVEIRA, L. F. C. de; D’OLIVEIRA, S. R. G.; LIMA, M. A. M. de. NUMERIC SOLUTION FOR OBTENTION OF THE LINE FLOW PROFILE IN NATURAL CHANNELS. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 28, n. 2, p. 55–65, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2996. Acesso em: 17 jul. 2024.

Issue

v. 28, n. 2, Jul./Dec. 1998

Section

Research Article

License

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