Publication: Automatic optimization of an airfoil for ocean current turbines
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Publication date
2012-10
Defense date
2012-10-31
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Abstract
In this study the kind of airfoil used is a variant from the commonly utilized
ones, due to the conditions in which it will have to work. Instead of the usual
applications where the fluid is air, in this case the airfoil must operate in water.
The aim within the whole work is to optimize the airfoil shape. To be
precise, optimizing means maximizing the aerodynamic force called lift on the
airfoil. The lift to drag ratio will be another important control parameter during all
the process. There is a specific shape given some certain boundary conditions and
constraints that makes possible to obtain the maximum value of the lift. What has been done is, in short, starting from a C++ code already
developed in charge of the airfoil geometry generation, adapt it so as to be able to
manually introduce variations on the geometry. The geometry will be imported on
ANSYS Workbench, properly meshed afterwards and then the problem will be
solved on Fluent.
The final step, i.e., the optimization, will be carried out by the Optimization
Toolbox included in MATLAB. MATLAB is also the tool that commands all the
process, calling subroutines and launching other programs from its DOS command.
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Keywords
Turbomaquinaria, Turbinas submarinas, Optimización automática