Method for computing turbulent flow using a near-wall eddy-viscosity formulation
US7668705B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 11, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jul 9, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2111/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique that improves large-eddy simulation consists in replacing the instantaneous sub-grid scale eddy-viscosity (such as the dynamic Smagorinsky model eddy-viscosity) in the near-wall region with an eddy-viscosity computed from Reynolds Averaged Navier-Stokes eddy-viscosity and corrected dynamically using the resolved turbulent stress. The near-wall eddy-viscosity formulation is applied either with a wall stress model on coarse grids that do not resolve the wall or with wall-resolved grids coarsened in the wall-parallel directions. Reynolds averaged Navier-Stokes eddy-viscosity is computed either from a look-up table or from a simultaneous solution of a Reynolds Averaged Navier-Stokes turbulence model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.