Volume rendering of the viscous dissipation field (related to the enstrophy) in a numerical simulation of cylindrical Couette flow. The simulations was carried out on the Seaborg at NERSC. The visualization was carried out by the INCITE team.

Simulations by F. Cattaneo, P. Fischer & A. Obabko

Cylindrical Couette flow (2005)               

Volume rendering of the viscous dissipation field (related to the enstrophy) in a numerical simulation of cylindrical Couette flow. The simulations was carried out on the Seaborg at NERSC. The visualization was carried out by the INCITE team.

Simulations by F. Cattaneo, P. Fischer & A. Obabko

Cylindrical Couette flow (2005)               

Surface rendering of the viscous dissipation field (related to the enstrophy) in a numerical simulation of cylindrical Couette flow. The simulations was carried out on the Seaborg at NERSC. The visualization was carried out by the INCITE team.

Simulations by F. Cattaneo, P. Fischer & A. Obabko

Cylindrical Couette flow (2005)               

Nested surfaces rendering of the viscous dissipation field (related to the enstrophy) in a numerical simulation of cylindrical Couette flow. The simulations was carried out on the Seaborg at NERSC. The visualization was carried out by the INCITE team.

Simulations by F. Cattaneo, P. Fischer & A. Obabko

Penetrative compressible convection (1995)               

Density plot of temperature fluctuations in a two-dimensional simulation of  compressible convection. The upper part of the layer is convective unstable  while the lower part is convectively stable. 

Fast dynamo magnetic field (1993)               

Magnetic field distribution in a kinematic dynamo calculation at high magnetic Reynolds number (10⁷). The driving velocity was a slightly modified version of the Galloway-Proctor flow.

Simulations by F. Cattaneo

Rotating Boussinesq Convection (2004)               

Three-dimensional simulation of Boussinesq convection in a plane layer rotating about the vertical axis. The picture shows the temperature distribution in a horizontal plane near the lower boundary. Light and dark tones correspond to hot and cold fluid respectively. The disordered cellular pattern is characteristic of convection at high Rayleigh number.

Simulations by F. Cattaneo & D. Hughes

Convectively driven dynamos (2001)               

Volume rendering of the regions of high magnetic field intensity in a convecting layer of electrically conducting fluid. The turbulent convective motions drive a dynamo that sustains the magnetic fluctuations against Ohmic dissipation.

Simulations by F. Cattaneo

Boussinesq convection (2002)               

Three-dimensional simulation of Boussinesq convection in a plane layer with large aspect ratio (20x20x1). The picture shows the temperature distribution in a horizontal plane near the upper boundary. Light and dark tones correspond to hot and cold fluid respectively. The disordered cellular pattern is characteristic of convection at high Rayleigh number. A larger pattern is also visible--the meso-cells--consisting of aggregates of smaller cells.

Simulations by F. Cattaneo