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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2001
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v63_n3_p_Minotti http://hdl.handle.net/20.500.12110/paper_1063651X_v63_n3_p_Minotti |
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paper:paper_1063651X_v63_n3_p_Minotti |
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paper:paper_1063651X_v63_n3_p_Minotti2023-06-08T16:03:48Z Formulation of subgrid stresses for large-scale fluid equations 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. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v63_n3_p_Minotti 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 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. |
| 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 |
| publishDate |
2001 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1063651X_v63_n3_p_Minotti http://hdl.handle.net/20.500.12110/paper_1063651X_v63_n3_p_Minotti |
| _version_ |
1768546079649824768 |