XII encontro nacional de águas urbanas calibração do fator de atrito em redes de abastecimento de água

Abstract

This paper aims to present an application of the new equation for Darcy-Weisbachfriction factor calibration using the Alternative Hydraulic Gradient Iterative Method (MIGHA) in water distribution networks. The equation is based on the proportionality between the calibrated element, the friction factor, and the hydraulic gradient. After calibrating the friction factor of all sections of the net, the absolute roughness is calculated. The method was applied through software developed with the help of the Epanet2.dll library as a hydraulic network simulator. The considered network is a dummy network that already presents calibration results by applying another method. Finally, the results found by calibration with MIGHA were compared with the results found in a scientific work that used the renowned method of genetic algorithms. Through the comparison it could be seen that the MIGHA did not present the best results, however, the results can be considered as good as those found using the genetic algorithms and with seconds as processing time.