scholarly journals Impact of dynamic modelling of the flame subgrid scale wrinkling in large-Eddy simulation of light-round in an annular combustor

2021 ◽  
Vol 230 ◽  
pp. 111416
Author(s):  
Stefano Puggelli ◽  
Denis Veynante ◽  
Ronan Vicquelin
Keyword(s):  
Large Eddy Simulation ◽  
Dynamic Modelling ◽  
Subgrid Scale ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Annular Combustor

scholarly journals Comparisons of Subgrid-Scale Models for OpenFoam Large- Eddy Simulation

2021 ◽  
Vol 1802 (4) ◽  
pp. 042088
Author(s):  
Zhipeng Feng ◽  
Huanhuan Qi ◽  
Xuan Huang ◽  
Shuai Liu ◽  
Jian Liu
Keyword(s):  
Large Eddy Simulation ◽  
Subgrid Scale ◽  
Eddy Simulation ◽  
Scale Models ◽  
Large Eddy

scholarly journals Atmospheric stability effect on subgrid-scale physics for large-eddy simulation

2001 ◽  
Vol 24 (9-10) ◽  
pp. 1085-1102 ◽  
Author(s):  
Fernando Porté-Agel ◽  
Markus Pahlow ◽  
Charles Meneveau ◽  
Marc B. Parlange
Keyword(s):  
Large Eddy Simulation ◽  
Atmospheric Stability ◽  
Subgrid Scale ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Stability Effect

scholarly journals Large-Eddy Simulation of Internal Flow through Human Vocal Folds

2018 ◽  
Vol 180 ◽  
pp. 02054
Author(s):  
Martin Lasota ◽  
Petr Šidlof
Keyword(s):  
Large Eddy Simulation ◽  
Stokes Equations ◽  
Turbulent Viscosity ◽  
Internal Flow ◽  
Vocal Folds ◽  
Computational Domain ◽  
Subgrid Scale ◽  
Eddy Simulation ◽  
Scale Models ◽  
Large Eddy

The phonatory process occurs when air is expelled from the lungs through the glottis and the pressure drop causes flow-induced oscillations of the vocal folds. The flow fields created in phonation are highly unsteady and the coherent vortex structures are also generated. For accuracy it is essential to compute on humanlike computational domain and appropriate mathematical model. The work deals with numerical simulation of air flow within the space between plicae vocales and plicae vestibulares. In addition to the dynamic width of the rima glottidis, where the sound is generated, there are lateral ventriculus laryngis and sacculus laryngis included in the computational domain as well. The paper presents the results from OpenFOAM which are obtained with a large-eddy simulation using second-order finite volume discretization of incompressible Navier-Stokes equations. Large-eddy simulations with different subgrid scale models are executed on structured mesh. In these cases are used only the subgrid scale models which model turbulence via turbulent viscosity and Boussinesq approximation in subglottal and supraglottal area in larynx.

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