Analysis and Validation of Large-Eddy Simulation Data

Abstract

The solution to the equations that define the large-eddy simulation furnishes explicit information only on the scales that are resolved, i. e. those that are left after reduction of the number of degrees of freedom in the exact solution. We are therefore dealing with information that is truncated in space and time. The time filtering is induced implicitly by the spatial filtering because, as the filtering eliminates certain space scales, it eliminates the corresponding time scales with them (see p. 15).