Resumen

SANDOVAL-MENDOZA, Luis Manuel et al. Mathematical Models for Flow Simulation in Cipoletti Weirs Used in Irrigation Systems. Rev Cie Téc Agr [online]. 2017, vol.26, n.1, pp. 57-65. ISSN 2071-0054.

This paper presents the results of the research carried out at the Laboratory of Fluid Mechanics and Hydraulics of the University San Carlos de Guatemala, where different weir Cipolleti were built with different values of base (b) in the range of 5-60 centimeters. A polynomial model of second order to estimate the parameters K and n of the exponential equation to estimate the flow and potential for discharge coefficient C_d function was found. The model to estimate the theoretical flow rate suggested by the hydraulics and hydrometrics manual and the one obtained by SPSS statistical program presented the highest relative errors; however, the rest of the tested models showed a good correlation with the observed flow rates of error less than 2%. The general experimental model relating discharge coefficient obtained reliable values for all evaluated widths and load heights (H) between 4 and 10 centimeters

Palabras clave : calibration; discharge coefficient; hydrodynamic channel; flow measurement.

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