Eliminating turbulence in spatially intermittent flows.

Hydrodynamic turbulence and intermittent random fields

In this article, we construct two families of multifractal random vector fields with non symmetrical increments. We discuss the use of such families to model the velocity field of turbulent flows. Short Title. Hydrodynamic turbulence and intermittent random fields

Intermittency and Eddy-viscosities in Dynamical Models of Turbulence

The dependence of intermittent inertial properties on ultraviolet eddy viscosity closures is examined within the framework of shellmodels of turbulent flows. Inertial intermittent exponents turn out to be fairly independent on the way energy is dissipated at small scales.

2DV Nonlinear k-ε Turbulence Modeling of Stratified Flows

The commonly used linear k-ε turbulence model is shown to be incapable of accurate prediction of turbulent flows, where non-isotropy is dominant. Two examples of non-isotropic flows, which have a wide range of applications in marine waters, are saline water flow and the stratified flows due to temperature gradients. These relate to stratification and consequently, variation of density through...

Study of Parameters Affecting Separation Bubble Size in High Speed Flows using k-ω Turbulence Model

Shock waves generated at different parts of vehicle interact with the boundary layer over the surface at high Mach flows. The adverse pressure gradient across strong shock wave causes the flow to separate and peak loads are generated at separation and reattachment points. The size of separation bubble in the shock boundary layer interaction flows depends on various parameters. Reynolds-averaged...

Rans Modelling of Intermittent Turbulent Flows Using Adaptive Mesh Refinement Methods