Purpose

Improvement of noise modeling and flow related models in an optimization code for wind turbine rotor design

Description

The aim of this project is to extend an existing optimization code (HAWTOpt) which is used at Risø DTU for the design of wind turbine rotors. Presently, a semi-empirical noise model (the so-called BPM model) is implemented for acoustic calculations. The first step will be to improve this model by replacing the tuned input data presently used by the BPM model with a proper evaluation of the boundary layer quantities using XFOIL (a coupled vortex panel-boundary layer code). Alternatively and/or in conjunction, CFD calculations could be separately performed to create more accurate tabulated data for the input. At last, a more advanced noise model (the so-called TNO model) will be implemented in conjunction with the XFOIL calculations for boundary layer data. As a last step of the study, the results of the overall model will be compared with full rotor noise measurements performed on an existing wind turbine.

Project form
Master thesis project. Note that this is a project description for a student in search of an interesting project (mainly addressed to DTU students), and not a vacancy for a student job, which means that funding connected to the project is not possible.

Qualifications

This project will involve some coding (mainly in C). Basic knowledge of airfoil aerodynamics is a must. CFD calculations using the code EllipSys2D may be involved at some stage during the project.

Project form

Thesis

Subjects

Computer science Engineering

Duration