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Doctoral Thesis
DOI
10.11606/T.3.2008.tde-19082008-171341
Document
Author
Full name
João Batista Mendes
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2008
Supervisor
Committee
Souza, Podalyro Amaral de (President)
Martins, José Rodolfo Scarati
Minei, Noboru
Porto, Rodrigo de Melo
Silva, Paulo Augusto Romera e
Title in Portuguese
Soleira elíptica-circular.
Keywords in Portuguese
Estruturas hidráulicas
Soleira elíptica-circular
Soleira medidora de vazão
Abstract in Portuguese
Este trabalho propõe uma soleira assimétrica elíptica-circular com apenas dois pontos de descontinuidade, com parâmetros geométrico associados à vazão específica de projeto, com possibilidade de padronização e cujas características hidráulicas (linha d´água, pressões, coeficiente de vazão) podem ser determinadas teoricamente. Um sistema de equações diferenciais parciais permite o desenvolvimento de um modelo computacional para determinação dos valores teóricos dessas características. A validação dos valores teóricos das características hidráulicas da soleira por um modelo computacional foi realizada com a confrontação desses mesmos valores obtidos em um modelo físico, permitindo a comparação de pressões, linha d´água, coeficiente de vazão e profundidade crítica.
Title in English
Elliptical-circular weirs.
Keywords in English
Elliptical-circular weirs
Flow meter weir
Hydraulic structure
Abstract in English
In this work is proposed an asymmetrical (elliptical-circular) weir with two points of discontinuity only, with geometrical parameters associated to the specific design discharge, allowing the standardization, and whose hydraulic characteristics (water profile, pressures and discharge coefficient) may be theoretically determinate. Their hydraulic characteristics, developed by a system of partial differential equations, system allowing the development of a computational model to determine the theoretical values of the weir hydraulic characteristics. The validation of these theoretical values of the weir hydraulic characteristics, obtained by a computational model, was made by the comparison between the values of water profile, pressures, discharge coefficient and critical depth obtained by the theoretical model and the values obtained by the physical model.
 
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Publishing Date
2008-08-22
 
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