Chapter 2: Spectral numerical methods for turbulence simulation
Robert D. Moser Oden Institute for Computational Engineering and Sciences, and Walker Department of Mechanical Engineering, University of Texas at Austin, Austin, TX, United States
Abstract
Spectral numerical methods are commonly used for the direct numerical simulation (DNS) and large eddy simulation (LES) of turbulence. The reason is that they exhibit very rapid convergence to smooth solutions and have excellent resolution properties, allowing the number of computational degrees of freedom required for a given accuracy to be minimized. This is particularly important for turbulence simulation in which a wide range of spatial scales must be represented. In spatial directions in which ...
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