Gallery

Compressible subsonic Direct Numerical Simulation of supercritical CO2 crossing the Widom Line
under Rayleigh-Benard configuration at Ra=1e7. From the onset of convection
to time-averaged stationarity (mesh size 192^3, 128 processors).
OsPray volume rendering of temperature from initial condition to established turbulence.

Impingement and solidification of multiple ceramic droplets on a solid substrate.
Simulation test of the impact and liquid-to-solid phase change of 52 extremely fine YSZ droplets with diameter 1 µm and impact velocity 100 m/s (Re = 26.34, We = 116.17), for the study of coating process within the framework of suspension plasma spraying – Initial temperatures 3800 K for fluids and 523 K for the substrate; fusion temperature of PCM at 2950 K – 29 910 hours of computing time for 34.56 million cells, done using 512 processors on the Curta (MCIA) high-performance computer. Impingement and solidification of multiple ceramic droplets on a solid substrate

 

 

Direct numerical simulation of ethanol and supercritical CO2 mixing in high pressure milli-fluidic system (11 billion cells, 131 072 processors) – Injection velocity 3m/s, co-flow velocity 5.61 m/s, external diameter 1.5 mm – Concentration volume rendering.

 

Evolution of particle morphology induced by mass transport and transfer at the interface during dissolution (left) and precipitation (right) processes – species concentration fields represented in the horizontal planes.

 

Pseudo direct numerical simulation of turbulent Rayleigh–Bénard convection (16 million cells, 256 processors) – Temperature volume rendering.

 

Direct numerical simulation of ethanol and supercritical CO2 mixing in high pressure microfluidic reactor system – 1 billion cells, 16384 processors –
Injection velocity 1m/s, co-flow velocity 9 m/s – Concentration volume rendering.

Direct numerical simulation of ethanol and supercritical CO2 mixing in high pressure microfluidic system
(300 millions cells, 3584 processors)

Direct Numerical Simulation of ethanol and supercritical CO2 mixing in a large reactor (400 millions cells, 2 days on 8192 processors) –
Concentration volume rendering visualization.

 

Direct Numerical Simulation of ethanol and supercritical CO2 mixing in a large reactor (400 millions cells, 2 days on 8192 processors) –
Transverse component of the vorticity is mapped on the Q criterion isosurface.

 

3D numerical simulation of a 5mm diameter rain drop falling freely
at terminal velocity – Fr=1650, We=5625 (3 millions cells, 128 processors)

 

Jet buckling simulations (VOF-PLIC interface reconstruction)

 

Rain drop impacts on a water free surface.
Level set method with Closest Point curvature extension.
Top: Fr=650, We=600. 8.5M cells, 32 processors
Bottom: Fr=1200, We=1200. 8.5M cells, 32 processors

 

Multiple drop impact on a free surface

 

Interface Moment-of-Fluid reconstruction of a 4 material disk
in a reverse-shear flow