Sökning: "Bernard Geurts"
Hittade 2 avhandlingar innehållade orden Bernard Geurts.
1. Boundary Conditions for Spectral Simulations of Atmospheric Boundary Layers
Sammanfattning : An atmospheric boundary layer (ABL) is generally a very high Reynolds number boundary layer over a fully rough surface that is influenced by different external forces. Numerical simulations of ABLs are typically demanding, particularly due to the high Reynolds numbers. LÄS MER
2. Anisotropy-resolving subgrid-scale modelling using explicit algebraic closures for large eddy simulation
Sammanfattning : The present thesis deals with the development and performance analysis ofanisotropy-resolving models for the small, unresolved scales (”sub-grid scales”,SGS) in large eddy simulation (LES). The models are characterised by a descriptionof anisotropy by use of explicit algebraic models for both the subgridscale(SGS) stress tensor (EASSM) and SGS scalar flux vector (EASSFM). LÄS MER