We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Dynamical Implications of Block Averaging.
- Authors
Treviño, George; Andreas, Edgar L.
- Abstract
We show that traditional Reynolds (block) averaging produces turbulence statistics whose time evolution is incompatible with the Navier–Stokes equation. Specifically, the zero integral scale that block averaging always produces leads to a trivial (zero-equals-zero) solution of the Navier–Stokes equation for autocovariances. We suggest alternative methods for analyzing turbulence time series that do not always generate a zero integral scale and, as a result, yield autocovariances whose time evolutions are compatible with the Navier–Stokes equation.
- Subjects
ATMOSPHERIC boundary layer; BLOCKING (Meteorology); REYNOLDS stress; TURBULENCE; STOKES equations; DYNAMIC meteorology; FLUID dynamics; HYDRODYNAMICS; METEOROLOGY
- Publication
Boundary-Layer Meteorology, 2006, Vol 120, Issue 3, p497
- ISSN
0006-8314
- Publication type
Article
- DOI
10.1007/s10546-006-9060-x