On linking the filter width to the boundary layer thickness in explicitly filtered large eddy simulations of wall bounded flows

Sarwar, Md. Mahfuz (2016) On linking the filter width to the boundary layer thickness in explicitly filtered large eddy simulations of wall bounded flows. PhD thesis, Victoria University.

Abstract

Computational fluid dynamics (CFD)-based three-dimensional predictive fire models are increasingly used for predicting fire growth and spread. The models provide information to fire safety engineers for designing fire protection systems in buildings. Although currently limited, in a generation CFD-based models are expected to be used by emergency organisations to obtain similar information during bushfires under a wide range of topographies, climates and types of vegetation for their resource allocation planning. To increase their accuracy, most promising CFD-based models are embedded with pyrolysis sub-models along with large eddy simulation (LES) schemes to account for turbulence. The fundamental idea of LES is to resolve the large energy containing eddies, and use sub-grid scale (SGS) model to simulate the effect of energy dissipation by small scale eddies on large eddies.

Item type Thesis (PhD thesis)
URI https://vuir.vu.edu.au/id/eprint/32887
Subjects Current > FOR Classification > 0105 Mathematical Physics
Current > FOR Classification > 0103 Numerical and Computational Mathematics
Historical > Faculty/School/Research Centre/Department > Centre for Environmental Safety and Risk Engineering (CESARE)
Current > Division/Research > College of Science and Engineering
Keywords turbulent flows, numerical simulations, mathematical simulations, modelling, Reynolds number turbulent flow, High Reynolds, Low Reynolds, baseline code, governing equations, numerical schemes, turbulence, eddies
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