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Modelling and Simulation in Engineering
Volume 2011 (2011), Article ID 146054, 8 pages
http://dx.doi.org/10.1155/2011/146054
Research Article

Experimental and Numerical Simulations Predictions Comparison of Power and Efficiency in Hydraulic Turbine

1Centro de Investigacion en Ingeniería y Ciencias Aplicadas, Universidad Autonoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca, Morelos, CP 62209, Mexico
2The Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences, 80952 Gdansk, Poland
3Départament de Génie Mécanique, Ecole Polythecnique de Montreal, 2500 Chemin de Polytechnique, Montréal, QC, Canada H3T 1J4

Received 1 November 2010; Accepted 24 February 2011

Academic Editor: Guan Yeoh

Copyright © 2011 Laura Castro et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

On-site power and mass flow rate measurements were conducted in a hydroelectric power plant (Mexico). Mass flow rate was obtained using Gibson's water hammer-based method. A numerical counterpart was carried out by using the commercial CFD software, and flow simulations were performed to principal components of a hydraulic turbine: runner and draft tube. Inlet boundary conditions for the runner were obtained from a previous simulation conducted in the spiral case. The computed results at the runner's outlet were used to conduct the subsequent draft tube simulation. The numerical results from the runner's flow simulation provided data to compute the torque and the turbine's power. Power-versus-efficiency curves were built, and very good agreement was found between experimental and numerical data.