Large Eddy Simulation of Turbulent Flow in a Compound Prismatic Open Channel

effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow

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Large-eddy Simulation of a Particle- Laden Turbulent Channel Flow

Large-eddy simulations of a vertical turbulent channel flow with 420,000 solid particles are performed in order to get insight into fundamental aspects of a riser flow. The question is addressed whether collisions between particles are important for the flow statistics. The turbulent channel flow corresponds to a particle volume fraction of 0.013 and a mass load ratio of 18, values that are rel...

Large-eddy simulation and wall modelling of turbulent channel flow

We report large-eddy simulation (LES) of turbulent channel flow. This LES neither resolves nor partially resolves the near-wall region. Instead, we develop a special near-wall subgrid-scale (SGS) model based on wall-parallel filtering and wall-normal averaging of the streamwise momentum equation, with an assumption of local inner scaling used to reduce the unsteady term. This gives an ordinary ...

Large-eddy simulation of turbulent open-channel flow over three- dimensional dunes

A large-eddy simulation study has been undertaken to investigate the turbulent structure of openchannel flow over three-dimensional (3D) dunes. The governing equations have been discretised using the finite volume method, with the partial cell treatment being implemented in a Cartesian grid form to deal with the 3D dune topography. The numerical model predicted free surface elevations, mean flo...

Investigations of Three- Dimensional Turbulent Cavity Flow Using Large Eddy Simulation Approach