Description du poste

Entreprise publique au service de ses clients, de ses partenaires et de l'intérêt général, le CSTB, Centre Scientifique et Technique du Bâtiment, a pour ambition d'anticiper les bâtiments et la ville de demain, pour améliorer la qualité de vie des citoyens. Il structure ses activités de recherche et expertise, évaluation, essais, certification et diffusion des connaissances, pour accompagner les acteurs dans l'innovation et sécuriser les projets de construction et de rénovation durables, en lien avec les transitions énergétique, environnementale et numérique.

Avec plus de 900 collaborateurs, ses filiales, ses partenaires et réseaux nationaux et internationaux, le groupe CSTB crée de la valeur ajoutée pour les acteurs de la construction et de l'aménagement, en les aidant à faire progresser la qualité et performance de leurs produits, systèmes, ouvrages et services.

Signataire de la Charte de la diversité, le CSTB conduit une politique active en faveur de l'égalité professionnelle et l'intégration des travailleurs handicapés, s'engageant ainsi à lutter contre toute forme de discrimination et à promouvoir la diversité culturelle, ethnique et sociale au sein de ses établissements.

A total of 15 PhD positions are available at 8 universities, 1 research centre and 4 industries, in the framework of the European Marie Curie European Training Network (ETN) zEPHYR. This project is focused on the development of performant wind farms by addressing simultaneously the individual performance of each turbine composing the wind farm, and the efficient harvesting of the local wind resources in on-shore and urban environments. The researchers recruited in zEPHYR will investigate emerging technologies through laboratory experiments, theoretical modelling and numerical simulations addressing the following aspects: mesoscale and microscale atmospheric boundary layer simulations, rotor aerodynamics, aeroacoustics and structural dynamics, atmospheric propagation and human factors, uncertainty quantification, sensitivity analysis and multi-physical optimization.

In that context, Siemens Industry Software NV (SISW, Belgium) and Le Centre Scientifique et Technique du Bâtiment (CSTB, France) are offering an ESR position for a PhD project entitled:
Numerical predictions of wind turbine noise in complex urban environments
The objective of this research project is to study and develop innovative numerical methods in order to predict the noise radiated from wind turbines located in complex urban environments. The near-field prediction of the wind turbine noise will be carried out using low-order semi-analytical models and finite-element solvers developed at SISW. The propagation of sound waves in urban environments, over large distances, including meteorological, turbulence and topography effects, will be assessed using CSTB outdoor propagation models and auralization techniques. This project will aim at designing a complete workflow, starting from the wind turbine and meteorological inputs, to the far field audio rendering in a complex urban environment. If successful, the proposed strategies will be further developed into a research prototype within the commercial software Siemens Simcenter 3D.
The PhD will be mainly based at SISW for 18 months and at CSTB for 18 months, under supervision of Dr. Le Bras and Dr. Maillard. The PhD applicant will be registered at the University of Twente in the Netherlands, under the supervision of Prof. Leandro De Santana. Several secondments are foreseen at the partner institutions of the zEPHYR network: at the University of Twente, Siemens Gamesa (Denmark), the von Karman Institute (Belgium) and the Wageningen University (the Netherlands).