Jourieh, Munif (2007) Development of a representative model of a wind turbine in order to study the installation of several machines on a wind park. PhD thesis Mécanique, ENSAM 2007ENAM0032 p.149.
Abstract
This thesis is devoted to the study of aerodynamics in wind turbines. It is divided into two main parts, one is experimental, and the other deals with modelling and numerical simulation. The velocity field downstream from a three-bladed wind turbine with a horizontal axis is explored in the wind tunnel at ENSAM-Paris. Two measurement techniques are used: hot wire anemometry and Particle Image Velocimetry (PIV). Experimental work gives a clear idea of the structure of the near wake and provides useful data to validate the numerical simulations and the hybrid models which are studied in this thesis. In the work concerning numerical simulation, two hybrid models are defined and implemented: a model of actuator disc and a model of actuator cylinder, coupled with a simulation based on the numerical resolution of the Navier-Stokes equations. These models are validated by the power of the wind turbine and on the velocity field in the near wake of the rotor. The numerical results are compared with the experimental data resulting from the tests carried out by the NREL for NREL phase II and VI cases. The experimental and numerical velocity fields are also compared in the wake of a wind turbine Rutland 503. In both validation cases, power and wake, the experimental data are in accordance with the results provided by the hybrid models. After this validation, the interaction between several wind turbines is studied and quantified. The tested hybrid models are also used to study the interaction between identical wind turbines placed one behind the other. The obtained results highlight the effect of spacing between the machines as well as the effect of free stream velocity.
| Item Type: | PhD Thesis (PhD) |
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| Thesis Supervisor: | Massouh, Fawaz |
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| Date: | 20 December 2007 |
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| Board of examiners: | Bakir, Farid and Descombes, Georges and Amjeh, Iskandar and Massouh, Fawaz and Kuszla, Patrick and Notton, Gilles and Rapin, Marc |
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| Ecole Doctorale: | ED 432 ECOLE DOCTORALE SCIENCES DES METIERS DE L'INGENIEUR |
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| Discipline: | Mécanique |
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| Collection (Fonds): | ENSAM |
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| Institution: | ENSAM |
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| Subjects: | 4. Materials Science, Mechanics and Mechanical Engineering |
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| Uncontrolled Keywords: | Energie éolienne, Parc éolien, Simulation numérique, Modèle hybride, Wind energy, Wind ferme, Numerical simulation, Hybrid model |
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| ID Code: | 3390 |
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| Deposited By: | Ramesh Prisca |
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| Deposited On: | 08 February 2008 |
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