Open AccessImplementation of a physical model to determine the hydraulic behavior of mountain rivers
Author(s) -
N. J. Cely,
Y P Varón,
Ricardo Fuentes
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1388/1/012041
Subject(s) - similarity (geometry) , flow (mathematics) , turbulence , scale (ratio) , channel (broadcasting) , open channel flow , scale model , work (physics) , hydraulic structure , distortion (music) , geology , hydrology (agriculture) , geometry , mathematics , mechanics , geotechnical engineering , computer science , physics , engineering , geography , image (mathematics) , telecommunications , mechanical engineering , cartography , artificial intelligence , aerospace engineering , amplifier , bandwidth (computing)
The present work consisted in the implementation of a small-scale physical model of a mountain river according to the similarity conditions that these models must satisfy, this model was implemented in a channel with measures 200 cm length, base 20 cm and height of 15 cm; a variable slope between 1% and 5% was handled, it was evaluated with the design conditions of open-flow channels, developing a methodology of physical modeling of channels and rivers of mobile bottom without distortion, according to a turbulent flow over rough contour, so that the values determined in the physical model complied with the laws of similarity and represented the most accurate way to a mountain river. The results showed a minimum flow of 8.03 l/s and a maximum of 17.96 l/s in the physical model, which in the prototype represents a flow of 284 m 3 /s and 635.04 m 3 /s respectively. On the other hand, it was determined that the average diameter of the granular material required in the physical model is 2 mm corresponding to an average diameter of 100 mm for mountain rivers.