Formulation of subgrid stresses for large-scale fluid equations

A formulation is presented based on a previously derived self-consistent procedure for obtaining subgrid scale models for complex system of equations. Using linear stability analysis and numerical simulations of the one-dimensional Burgers equation the formulation is shown to be very stable numerica...

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Detalles Bibliográficos
Autores principales: Minotti, F.O., Dasso, S.
Formato: JOUR
Materias:
Computer simulation
Convergence of numerical methods
Kinematics
Mathematical models
Turbulent flow
Viscosity
Viscous flow
Burgers equation
Linear stability analysis
Incompressible flow
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1063651X_v63_n3_p_Minotti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_1063651X_v63_n3_p_Minotti
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spelling todo:paper_1063651X_v63_n3_p_Minotti2023-10-03T16:01:33Z Formulation of subgrid stresses for large-scale fluid equations Minotti, F.O. Dasso, S. Computer simulation Convergence of numerical methods Kinematics Mathematical models Turbulent flow Viscosity Viscous flow Burgers equation Linear stability analysis Incompressible flow A formulation is presented based on a previously derived self-consistent procedure for obtaining subgrid scale models for complex system of equations. Using linear stability analysis and numerical simulations of the one-dimensional Burgers equation the formulation is shown to be very stable numerically and to reproduce accurately the large-scale flow of a high-resolution, direct simulation. Moreover, the resulting equation has a structure very similar to the viscous Camassa-Holm equation recently introduced in the modeling of turbulent flows. © 2001 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1063651X_v63_n3_p_Minotti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Computer simulation
Convergence of numerical methods
Kinematics
Mathematical models
Turbulent flow
Viscosity
Viscous flow
Burgers equation
Linear stability analysis
Incompressible flow
spellingShingle Computer simulation
Convergence of numerical methods
Kinematics
Mathematical models
Turbulent flow
Viscosity
Viscous flow
Burgers equation
Linear stability analysis
Incompressible flow
Minotti, F.O.
Dasso, S.
Formulation of subgrid stresses for large-scale fluid equations
topic_facet Computer simulation
Convergence of numerical methods
Kinematics
Mathematical models
Turbulent flow
Viscosity
Viscous flow
Burgers equation
Linear stability analysis
Incompressible flow
description A formulation is presented based on a previously derived self-consistent procedure for obtaining subgrid scale models for complex system of equations. Using linear stability analysis and numerical simulations of the one-dimensional Burgers equation the formulation is shown to be very stable numerically and to reproduce accurately the large-scale flow of a high-resolution, direct simulation. Moreover, the resulting equation has a structure very similar to the viscous Camassa-Holm equation recently introduced in the modeling of turbulent flows. © 2001 The American Physical Society.
format JOUR
author Minotti, F.O.
Dasso, S.
author_facet Minotti, F.O.
Dasso, S.
author_sort Minotti, F.O.
title Formulation of subgrid stresses for large-scale fluid equations
title_short Formulation of subgrid stresses for large-scale fluid equations
title_full Formulation of subgrid stresses for large-scale fluid equations
title_fullStr Formulation of subgrid stresses for large-scale fluid equations
title_full_unstemmed Formulation of subgrid stresses for large-scale fluid equations
title_sort formulation of subgrid stresses for large-scale fluid equations
url http://hdl.handle.net/20.500.12110/paper_1063651X_v63_n3_p_Minotti
work_keys_str_mv AT minottifo formulationofsubgridstressesforlargescalefluidequations
AT dassos formulationofsubgridstressesforlargescalefluidequations
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