atmospheric boundary layer

Optimizing turbulent inflow conditions for large-eddy simulations of the atmospheric boundary layer

Large-eddy simulations (LES) of the atmospheric boundary layer (ABL) require the specification of a turbulent inflow condition with appropriate turbulence intensities and length scales. When using a synthetic turbulence generator, the statistics …

Predictive large eddy simulations for urban flows: Challenges and opportunities

Computational fluid dynamics predictions of urban flow are subject to several sources of uncertainty, such as the definition of the inflow boundary conditions or the turbulence model. Compared to Reynolds-averaged Navier-Stokes (RANS) simulations, …

Advanced turbulence models and boundary conditions for flows around different configurations of ground-mounted buildings

When dealing with Atmospheric Boundary Layer (ABL) simulations, commercial computational fluid dynamics (CFD) acquires a strategic resonance. Thanks to its good compromise between accuracy of results and calculation time, RANS still represents a …

3D city modelling for urban applications

The course focuses on applications based on semantic 3D city models. These applications will deal with urban energy modelling and urban micro-climate simulations. Urban energy modelling covers topics such as: bottom-up computation of energy demand at urban/district scale (having the building as the smallest unit), definition of refurbishment scenarios, impact of renewables, linking semantic 3D city models with energy dynamic simulation tools, coupling buildings with supply networks, etc. Urban micro-climate simulations covers topics such as: wind predictions, dispersion of air pollutants, prediction of urban heat island, etc.