Estimación del coeficiente de manning con el método de los dos puntos en el Río Negro (Cundinamarca)

Abstract

Estimating the Manning Roughness coefficient with low uncertainty is of vital importance in any hydraulic study, mainly in natural open channel flows. For the calculation of the roughness there are many empirical methods that are generally applicable only to a limited range of geometrical, geomechanical conditions of the bed and hydraulics of the river under study and that depend on the experience of the consultant or researcher. The method of the two points in the Negro River located in the department of Cundinamarca - Colombia is used, the results are compared with an empirical method, in addition the height of rugosity of the bed is estimated that allows to establish that the Negro River is macro-rough with uniform flow.