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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/7966

Title: A study of subgrid scale modelling and inflow boundary conditions for large eddy simulation of wall-bounded flows
Authors: Veloudis, Ioannis
Keywords: Turbulence
Wall-bounded flow
CFD
LES
Inlet-boundary conditions
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Issue Date: 2006
Publisher: © Ioannis Veloudis
Abstract: The complicated turbulence structures in wall-bounded flows require accurate subgrid scale, SGS, modelling and realistic inlet boundary conditions for Large Eddy Simulation, LES. The present study focused on the investigation and development of transport equation SGS models and on the development of inlet conditions generation algorithms specialised for LES of wall-bounded flows. The investigation of SGS models has been carried out in two stages. In the first stage, models based on resolved scales and models based on subgrid scales were tested on a series of channel flow cases. Among the second group of models, there was a new SGS model whose development was based on the concept of dissipation calculated from the energy spectrum. The results indicated the superiority of the models based on subgrid scales, with the new model providing the most accurate flow field in general. (Continues...).
Description: A Doctoral Thesis. Submitted in partial fulfillment of the requirements for the award of Doctor of Philosophy of Loughborough University.
URI: https://dspace.lboro.ac.uk/2134/7966
Appears in Collections:PhD Theses (Aeronautical and Automotive Engineering)

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