Flow simulation and efficiency hill chart prediction for a Propeller turbine

In the present paper, we focus on the flow computation of a low head Propeller turbine at a wide range of design and off-design operating conditions. First, we will present the results on the efficiency hill chart prediction of the Propeller turbine and discuss the consequences of using non-homologo...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2010-08, Vol.12 (1), p.012040-012040
Main Authors: Vu, T C, Koller, M, Gauthier, M, Deschênes, C
Format: Article
Language:English
Subjects:
Computational efficiency
Computer simulation
Computing time
Draft tubes
Earth
Efficiency
Flow characteristics
Flow simulation
Homology
Propellers
Simulation
Turbines
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Summary:In the present paper, we focus on the flow computation of a low head Propeller turbine at a wide range of design and off-design operating conditions. First, we will present the results on the efficiency hill chart prediction of the Propeller turbine and discuss the consequences of using non-homologous blade geometries for the CFD simulation. The flow characteristics of the entire turbine will be also investigated and compared with experimental data at different measurement planes. Two operating conditions are selected, the first one at the best efficiency point and the second one at part load condition. At the same time, for the same selected operating points, the numerical results for the entire turbine simulation will be compared with flow simulation with our standard stage calculation approach which includes only guide vane, runner and draft tube geometries.
ISSN:1755-1315
1755-1307
1755-1315
DOI:10.1088/1755-1315/12/1/012040