New methodology for calibration of hydrodynamic models in curved open-channel flow




Curved channel, Hydrodynamic model, Design of experiments, Lack of fit, Calibration of numerical models


This paper evaluates a new methodology for calibration of hydrodynamic models based on the theory of statistical design of experiments. An Eulerian-Eulerian hydrodynamic homogeneous model, integrated by the commercial software CFX Ansys Inc., is used to perform the numerical experiments. For the screening step, the fractional factorial experimental design 27-2 was used, followed by a Draper-Lin design of second order to find the optimum point in the calibration. A new method is introduced to generate the level of points to the center and to carry out the test of lack of fit. In this work, we develop a validated methodology for the calibration of deterministic hydrodynamic models with several factors, suggesting a second-order regression model for forecasting the optimum point of the simulations, with acceptable accuracy in predicting the response variable.

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Author Biographies

Hernán Javier Gómez-Zambrano, University of Nariño

Associate Professor, Department of Civil Engineering, Faculty of Engineering. Research Group on Risks, Threats and the Environment (GRAMA).



Víctor Ignacio López-Ríos, National University of Colombia

Associate Professor. Research Group in Statistics, School of Statistics, Faculty of Sciences.

Francisco Mauricio Toro-Botero, National University of Colombia

Professor. Postgraduate Research Group on Use of Hydraulic Resources (PARH), Department of Geosciences and Environment, Faculty of Mines.


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How to Cite

Gómez-Zambrano, H. J., López-Ríos, V. I., & Toro-Botero, F. M. (2017). New methodology for calibration of hydrodynamic models in curved open-channel flow. Revista Facultad De Ingeniería Universidad De Antioquia, (83), 82–91.