Large eddy simulation models: Difference between revisions
From Glossary of Meteorology
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<div class="definition"><div class="short_definition">Computer codes that numerically integrate in three dimensions the time-dependent [[Navier–Stokes equations]] filtered over a [[grid]] volume much smaller than the size of the [[energy-containing eddies]] or [[wavelengths]] of [[turbulence]].</div><br/> <div class="paragraph">The solutions of these models consist of energy-containing large eddies that carry most of the turbulent fluxes. The net effect of small subgrid-scale eddies is treated as locally diffusive and dissipative, typically modeled based on [[inertial-subrange]] theory.</div><br/> </div> | <div class="definition"><div class="short_definition">Computer codes that numerically integrate in three dimensions the time-dependent [[Navier–Stokes equations]] filtered over a [[grid]] volume much smaller than the size of the [[energy-containing eddies]] or [[wavelengths]] of [[turbulence]].</div><br/> <div class="paragraph">The solutions of these models consist of energy-containing large eddies that carry most of the turbulent fluxes. The net effect of small subgrid-scale eddies is treated as locally diffusive and dissipative, typically modeled based on [[inertial subrange|inertial-subrange]] theory.</div><br/> </div> | ||
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Latest revision as of 16:18, 25 April 2012
large eddy simulation models
Computer codes that numerically integrate in three dimensions the time-dependent Navier–Stokes equations filtered over a grid volume much smaller than the size of the energy-containing eddies or wavelengths of turbulence.
The solutions of these models consist of energy-containing large eddies that carry most of the turbulent fluxes. The net effect of small subgrid-scale eddies is treated as locally diffusive and dissipative, typically modeled based on inertial-subrange theory.
