Difference between revisions of "YALES2 Gallery"

Revision as of 21:44, 1 October 2011

Combustion

PRECCINSTA Burner (Vincent Moureau)

Direct Numerical Simulation of an aeronautical burner [1]. The mesh features 2.6 billion tetrahedrons and a resolution of 100 microns.

PRECCINSTA burner with YALES2

Iso-surface of the Q criterion for the isothermal case	Temperature field for the fully premixed reacting case	OH radical field for the fully premixed reacting case
		Couverture du Numéro Spécial Calcul Intensif des Comptes Rendus de Mécanique de l'académie des sciences

KIAI burner (Vincent Moureau)

Large-Eddy Simulations of a swirl burner designed and operated at CORIA (J.P. Frenillot, G. Cabot, B. Renou, M. Boukhalfa).

KIAI burner with YALES2

Velocity field for the cold flow - 382M tetrahedrons

Q-criterion for the cold flow - 382M tetrahedrons

Aerodynamics

Formula One (David Taieb, Guillaume Ribert & Vincent Moureau)

Computation of a Formula 1 meeting with the 2010 regulations.

The design is based on the 2008 car which was simulated with the Fluent software with less than one million cells. The new car has the main features observed during the early part of F1 season, like the coca bottle shaped sidepods, the double-deck diffuser, the outer mirror disposition (forbidden by the FIA in the second part of the season), the three elements front wing.

The body of the car is discretized with 6.5mm element leading to 36 M cells in the computational domain.

Formula One with YALES2

Formula 1 with 36 Million cells - Streamlines

Formula 1 with 36 Million cells - Iso-Q criterion

Video of Formula 1 36 Million cells - Iso-Q criterion

Interaction between two Le Mans Series prototypes (David Taieb, Guillaume Ribert & Vincent Moureau)

Interaction between two Le Mans Series prototypes with YALES2

Heat transfers

T7.2 Blade (Nicolas Maheu)

Large-Eddy Simulation of heat exchanges on a turbine blade.

T7.2 blade with YALES2

T7.2 Blade - Iso-Q criterion - 240M tetrahedrons

T7.2 Blade - Iso-T 325K - 240M tetrahedrons

Two-phase flows

Triple disk injector (Vincent Moureau)

Computation of a Triple Disk injector (Grout et al 2007) with 203 million tetrahedral cells. The densities and viscosities are those of water and air at atmospheric pressure and temperature.

Pouring flow (Vincent Moureau and Olivier Desjardins)

Sample computation of a 2D two-phase flow with realistic properties for air and water to highlight the robustness of the method developed by Desjardins and Moureau at the 2010 CTR Summer Program.

Splashing (Vincent Moureau)

2D computation with YALES2 of a Lagrangian spray splashing on a wall and forming a film modeled with a level set and the Ghost Fluid Method. The grey particles and the grey film have the properties of water and the color represents the velocity magnitude in the gas. The Lagrangian particle are one-way coupled to the gas through drag for sake of simplicity.

Advanced numerics

Immersed boundaries on unstructured grids (Vincent Moureau)

2D computation with YALES2 of the flow around two moving cylinders with an immersed boundary technique implemented for unstructured grids. The color represents the velocity magnitude.

Mesh deformation (Vincent Moureau)

Demonstration of 2D mesh deformation with YALES2. Only the velocity of boundaries is prescribed and the movement of the nodes is found by inverting an elliptic system. Edge swapping is also activated in this example.