Numerical simulation of atmospheric boundary layer flows


Abstract : There is an increasing interest in the application of Computational Fluid Dynamics (CFD) to the quantification of fluid flow in the lower atmosphere (troposphere and lower stratosphere) at the mesoscale, for weather prediction and wind resource assessment, and in the lower troposphere at the micro scale, where the highly turbulent atmospheric boundary layer (ABL) interacts directly with the human environment. Simulation of atmospheric flows at the meso and micro scales over both flat and complex domain is necessary for the estimation of wind loads on buildings and building heating requirements, to predict wind turbine loadings and for the optimal design of wind farms, to predict and evaluate the production and transport of pollution in the atmosphere and to perform micro-climate studies. The simulation of ABL flows is generally performed using commercial CFD codes with RANS turbulence modelling, applying the standard k–ε model. A novel approach has been recently proposed in the ATM department, consisting in the modification of the turbulence model and wall function formulation to retrieve an overall consistent treatment of the ABL. The methodology has been demonstrated for the simulation of ABL flows over flat and complex terrains, and around buildings. The objective of the doctoral program is to develop the approach further, to improve the quality of the predictions for the flow around buildings and in different stratification conditions.
Promoteur/Supervisor : Prof. Parente Alessandro
Email : Alessandro.Parente@ulb.ac.be
Site Web/Web site : http://mecapp42.ulb.ac.be/atm/Members/alepare
Centre de recherche/Research center : Aero-Thermo-Mechanics Department
Faculté/Faculty : Faculté des Sciences appliquées - école polytechnique/Brussels School of Engineering (Faculty of Applied Sciences)
Ecole doctorale/Graduate Colleges : Sciences de l'ingénieur/Engineering
Ecole doctorale thématique/Graduate School (French Only):



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