mixed subgrid-scale model
work
procedure
solver
new forms
2022-08-04T17:22
consistent redefinition
properties
framework
2015-01-28
derivative operator
15-21
strategies
present work
numerical experiments
model
analysis
https://scigraph.springernature.com/explorer/license/
Numerical Experiments with a New Dynamic Mixed Subgrid-Scale Model
trough
accuracy
part
channel flow
dynamic procedure
dynamic mixed subgrid-scale model
turbulent channel flow
filtering
chapter
Taylor series analysis
subgrid-scale model
classical modeling strategies
numerical tests
LES framework
experiments
2015-01-28
SGS tensor
false
In the present work we introduce an LES framework which does not require any commutation property between filtering and derivative operators. A consistent redefinition of the SGS tensor in the new framework introduces several differences in the classical modeling strategies, including a modified, cheaper, form of Germano dynamic procedure. This dynamic procedure is exploited trough a new form of mixed model, whose scale-similar part is derived by a Taylor series analysis of the SGS tensor. The model is implemented in a commercial unstructured finite volume solver and numerical tests are performed on the turbulent channel flow at Reτ=590\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$\mathrm {Re}_\tau = 590$$\end{document}, showing the flexibility and accuracy of the proposed modeling strategy.
mixed models
chapters
flow
modeling strategy
commutation properties
finite volume solver
tensor
https://doi.org/10.1007/978-3-319-14448-1_2
differences
flexibility
series analysis
form
operators
unstructured finite volume solver
test
new framework
redefinition
978-3-319-14447-4
Direct and Large-Eddy Simulation IX
978-3-319-14448-1
Lampitella
P.
Hans
Kuerten
Springer Nature - SN SciGraph project
Fröhlich
Jochen
10.1007/978-3-319-14448-1_2
doi
dimensions_id
pub.1023456989
Springer Nature
Interdisciplinary Engineering
E.
Colombo
Department of Energy, Politecnico di Milano, Via Lambruschini 4, 20156, Milan, Italy
Department of Energy, Politecnico di Milano, Via Lambruschini 4, 20156, Milan, Italy
F.
Inzoli
Engineering
Bernard J.
Geurts
Vincenzo
Armenio