Print Email Facebook Twitter ILES and LES of Complex Engineering Turbulent Flows Part of: ECCOMAS CFD 2006: Proceedings of the European Conference on Computational Fluid Dynamics· list the conference papers Title ILES and LES of Complex Engineering Turbulent Flows Author Fureby, C. Date 2006-09-07 Abstract The present study concerns the application of Large Eddy Simulation (LES) and Implicit LES (ILES) to engineering flow problems. Such applications are often very complicated, involving both complex geometries and complex physics, such as turbulence, chemical reactions, phase changes and compressibility. The aim of the study is to illustrate what problems occur when attempting to perform such engineering flow calculations using LES and ILES, and put these in relation to the issues originally motivating the calculations. The issues of subgrid modeling are discussed with particular emphasis on the complex physics that needs to be incorporated into the LES models. Results from representative calculations, involving incompressible flows around complex geometries, aerodynamic noise, compressible flows, combustion and cavitation, are presented, discussed and compared with experimental data whenever possible. In addition, we also compare predictions from LES and ILES with conventional Reynolds Averaged Navier-Stokes (RANS) models and Detatched Eddy Simulations (DES) for academically challenging flows, such as the flow around a cylinder and around a surface mounted 3D hill. It is found that both LES and ILES predict these flows more accurately than RANS and DES, and include more information about the dynamics of the flow. Subject LESILESengineering applicationsincompressible flowcompressible flowflow noiseturbulent premixed combustioncavitation To reference this document use: http://resolver.tudelft.nl/uuid:ce4bd9ee-4eb4-4569-83a2-6bf444b7d0dd Part of collection Conference proceedings Document type conference paper Rights (c) 2006 Fureby, C. Files PDF Fureby.pdf 3.99 MB Close viewer /islandora/object/uuid:ce4bd9ee-4eb4-4569-83a2-6bf444b7d0dd/datastream/OBJ/view