T-Space at The University of Toronto Libraries >
School of Graduate Studies - Theses >
Please use this identifier to cite or link to this item:
|Title: ||Design and Application of Discrete Explicit Filters for Large Eddy Simulation of Compressible Turbulent Flows|
|Authors: ||Deconinck, Willem|
|Advisor: ||Groth, Clinton P. T.|
|Department: ||Aerospace Science and Engineering|
|Keywords: ||Large Eddy Simulation|
Discrete Explicit Filters
|Issue Date: ||24-Feb-2009|
|Abstract: ||In the context of Large Eddy Simulation (LES) of turbulent flows, there is a current need to compare and evaluate different proposed subfilter-scale models. In order to carefully compare subfilter-scale models and compare LES predictions to Direct Numerical Simulation (DNS) results (the latter would be helpful in the comparison and validation of models), there is a real need for a "grid-independent" LES capability and explicit filtering methods offer one means by which this may be achieved.
Advantages of explicit filtering are that it provides a means for eliminating aliasing errors, allows for the direct control of commutation errors, and most importantly allows a decoupling between the mesh spacing and the filter width which is the primary reason why there are difficulties in comparing LES solutions obtained on different grids. This thesis considers the design and assessment of discrete explicit filters and their application to isotropic turbulence prediction.|
|Appears in Collections:||Master|
Institute for Aerospace Studies - Master theses
Items in T-Space are protected by copyright, with all rights reserved, unless otherwise indicated.