LES-like stabilization of spectral elements for the solution of the Euler equations of moist stratified flows
Giraldo, Francis X.
MetadataShow full item record
The solution of the Euler equations by the spectral element method is prone to instabilities that must be damped in some way. We approach the problem of stabilization via an adaptive Large-Eddy-Simulation-like scheme meant to treat such instabilities by modeling the sub-grid scale features of the flow. This is a novel approach that is built on the recent work by Nazarov and Hoffman [1,2], who defined this scheme to capture turbulence in fully compressible flows resolved by adaptive finite elements. The novelty of our effort lies in its extension to high order spectral elements for low Mach number stratified flows. This work is a step toward the implementation of an LES model within the Nonhydrostatic Unified Model of the Atmosphere (NUMA) [3,4]. The method and the results reported in this poster are detailed in .
Showing items related by title, author, creator and subject.
Cobb, Christopher B. R. (Monterey, California. Naval Postgraduate School, 1994-12);In the past six years, acts of maritime piracy have been occurring with increasing frequency in many regions of the world. Adverse effects from these attacks are suffered not just by elements of the shipping industry but, ...
Ardalan, Abolfath (Monterey, California. U.S. Naval Postgraduate School, 1967-05);In this thesis the generation of equivalent networks by means of congruent transformation using a variable transformation matrix applied to the admittance matrix of an n+l node, common datum, network is studied. The ranges ...
Loke, Yong (Monterey, California. Naval Postgraduate School, 2006-03);A wirelessly networked opportunistic digital array radar (WNODAR) is an integrated ship wide digital phased array, where the array elements are placed at available open areas over the entire surface of the platform. The ...