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Turbulence statistics in fully developed channel flow at low reynolds number
A direct numerical simulation of a turbulent channel flow is performed. The unsteady Navier-Stokes equations are solved numerically at a Reynolds number of 3300, based on thc mean centreline velocityExpand
A dynamic subgrid‐scale eddy viscosity model
One major drawback of the eddy viscosity subgrid‐scale stress models used in large‐eddy simulations is their inability to represent correctly with a single universal constant different turbulentExpand
Application of a Fractional-Step Method to Incompressible Navier-Stokes Equations
A numerical method for computing three-dimensional, time-dependent incompressible flows is presented. The method is based on a fractional-step, or time-splitting, scheme in conjunction with theExpand
Eddies, streams, and convergence zones in turbulent flows
Recent studies of turbulent shear flows have shown that many of their important kinematical and dynamical properties can be more clearly understood by describing the flows in terms of individualExpand
THE MINIMAL FLOW UNIT IN NEAR-WALL TURBULENCE
Direct numerical simulations of unsteady channel flow were performed at low to moderate Reynolds numbers on computational boxes chosen small enough so that the flow consists of a doubly periodic (inExpand
Active turbulence control for drag reduction in wall-bounded flows
The objective of this study is to explore concepts for active control of turbulent boundary layers leading to skin-friction reduction using the direct numerical simulation technique. Significant dragExpand
Progress-variable approach for large-eddy simulation of non-premixed turbulent combustion
A new approach to chemistry modelling for large-eddy simulation of turbulent reacting flows is developed. Instead of solving transport equations for all of the numerous species in a typical chemicalExpand
A dynamic subgrid‐scale model for compressible turbulence and scalar transport
The dynamic subgrid‐scale (SGS) model of Germano et al. [Phys. Fluids A 3, 1760 (1991)] is generalized for the large eddy simulation (LES) of compressible flows and transport of a scalar. The modelExpand
DIRECT NUMERICAL SIMULATION: A Tool in Turbulence Research
▪ Abstract We review the direct numerical simulation (DNS) of turbulent flows. We stress that DNS is a research tool, and not a brute-force solution to the Navier-Stokes equations for engineeringExpand
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