About Multi-resolution Techniques for Large Eddy Simulation of Reactive Multi-phase Flows

Large-eddy Simulation of Single Phase Turbulent Flows in Cyclones

A Large-Eddy Simulation (LES) of a single-phase turbulent flow in model cyclone geometry was performed. The computational code utilized is a dedicated type of code which incorporates the finite volume method using SIMPLE algorithm on unstructured three-dimensional computational grid. The standard Smagorinsky sub-grid scale model, including Van Driest wall damping function, and Yakhot’s RNG sub-...

Some Aspects of Numerical Studies of Turbulent Flows Using Large Eddy Simulation Technique

Large Eddy Simulation for Turbulent Flows

This thesis is concerned with one of the most promising approaches to the numerical simulation of turbulent flows, the Large Eddy Simulation (LES) in which the large scales of the flow are calculated directly, while the interactions with the small scales are modeled. Specifically, we analyze two new LES models, introduced in [30] and [51]. First, we sketch the derivation of the LES model introd...

Some Aspects of Numerical Studies of Turbulent Flows Using Large Eddy Simulation Technique

Direct and large-eddy simulation of turbulent flows on composite multi-resolution grids by the lattice Boltzmann method

In order to properly address the simulation of complex (weakly compressible) turbulent flows, the lattice Boltzmann method, originally designed for uniform structured grids, needs to be extended to composite multi-domain grids displaying various levels of spatial resolution. Therefore, physical conditions must be specified to determine the mapping of statistical information (about the populatio...