The filtering analog of the variational multiscale method in large-eddy simulation

Variational Multiscale Large Eddy Simulation of Turbulent Incompressible Flows

The variational multiscale (VMS) method was introduced in [4] as a framework for the development of stabilization techniques, which aim to overcome numerical difficulties encountered when using the standard Galerkin method, the finite element (FE) counterpart of centered finite differences (FD), namley, the compatibility condition between the velocity and pressure FE spaces, which require the u...

A Variational Multiscale Method with Multifractal Subgrid-scale Modeling for Large-eddy Simulation of Turbulent Flow

A variational multiscale method with multifractal subgrid-scale modeling is proposed for large-eddy simulation of turbulent flow. In the multifractal subgrid-scale modeling approach, the subgrid-scale velocity is evaluated from a multifractal description of the subgrid-scale vorticity, which is based on the multifractal scale similarity of gradient fields in turbulent flow. The multifractal sub...

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

چکیده ندارد.

The residual-based variational multiscale formulation for the large eddy simulation of compressible flows

The residual-based variational multiscale formulation is applied to develop a large eddy simulation (LES) model for compressible flows. In addition, a mixed model, in which a deviatoric Smagorinsky subgrid stress term is added to the RBVM terms to better model the Reynolds stresses is proposed. These models, along with the dynamic Smagorinsky-Yoshizawa-eddy diffusivity model are tested in predi...

Large eddy simulation models for incompressible magnetohydrodynamics derived from the variational multiscale formulation