Thesis-2006-Veloudis.pdf (23.62 MB)
A study of subgrid scale modelling and inflow boundary conditions for large eddy simulation of wall-bounded flows
thesis
posted on 2011-02-08, 11:30 authored by Ioannis VeloudisThe 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...).
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Publisher
© Ioannis VeloudisPublication date
2006Notes
A Doctoral Thesis. Submitted in partial fulfillment of the requirements for the award of Doctor of Philosophy of Loughborough University.EThOS Persistent ID
uk.bl.ethos.479257Language
- en