SC12 Home > SC12 Schedule > SC12 Presentation - Two Fluids Level Set: High Performance Simulation and Post Processing

SCHEDULE: NOV 10-16, 2012

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Two Fluids Level Set: High Performance Simulation and Post Processing

SESSION: Scientific Visualization Showcase Reception

EVENT TYPE: Scientific Visualization Showcases

TIME: 5:15PM - 7:00PM

AUTHOR(S):Herbert Owen, Guillaume Houzeaux, Cristobal Samaniego, Fernando Cucchietti, Guillermo Marin, Carlos Tripiana, Mariano Vazquez, Hadrien Calmet

ROOM:North Foyer

ABSTRACT:
Flows with moving interfaces appear in a wide range of real world problems. This report, accompanying the video "Two fluids level set: High performance simulation and post processing" presents the implementation of a Level Set method for two fluid flows in the parallel finite element code Alya that can scale up to thousands of processors. To give an idea of the versatility of the implementation examples extending from the flushing of a toilet to the simulation of free surface flows around ship hulls are presented. The spatial discretization is based on unstructured linear finite elements, tetrahedras and prisms that allow a great degree of flexibility for complex geometries as will be shown in the examples. The time discretization uses a standard trapezoidal rule. The position of the moving interface is captured with the Level Set technique that is better suited for complex flows than interface tracking schemes. The jump in the fluid properties is smoothed in a region close to the interface. For ship hydrodynamics simulations the model has been coupled with the SST k-omega turbulence model.

Chair/Author Details:

Herbert Owen - Barcelona Supercomputing Center

Guillaume Houzeaux - Barcelona Supercomputing Center

Cristobal Samaniego - Barcelona Supercomputing Center

Fernando Cucchietti - Barcelona Supercomputing Center

Guillermo Marin - Barcelona Supercomputing Center

Carlos Tripiana - Barcelona Supercomputing Center

Mariano Vazquez - Barcelona Supercomputing Center

Hadrien Calmet - Barcelona Supercomputing Center

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Two Fluids Level Set: High Performance Simulation and Post Processing

SESSION: Scientific Visualization Showcase Reception

EVENT TYPE:

TIME: 5:15PM - 7:00PM

AUTHOR(S):Herbert Owen, Guillaume Houzeaux, Cristobal Samaniego, Fernando Cucchietti, Guillermo Marin, Carlos Tripiana, Mariano Vazquez, Hadrien Calmet

ROOM:North Foyer

ABSTRACT:
Flows with moving interfaces appear in a wide range of real world problems. This report, accompanying the video "Two fluids level set: High performance simulation and post processing" presents the implementation of a Level Set method for two fluid flows in the parallel finite element code Alya that can scale up to thousands of processors. To give an idea of the versatility of the implementation examples extending from the flushing of a toilet to the simulation of free surface flows around ship hulls are presented. The spatial discretization is based on unstructured linear finite elements, tetrahedras and prisms that allow a great degree of flexibility for complex geometries as will be shown in the examples. The time discretization uses a standard trapezoidal rule. The position of the moving interface is captured with the Level Set technique that is better suited for complex flows than interface tracking schemes. The jump in the fluid properties is smoothed in a region close to the interface. For ship hydrodynamics simulations the model has been coupled with the SST k-omega turbulence model.

Chair/Author Details:

Herbert Owen - Barcelona Supercomputing Center

Guillaume Houzeaux - Barcelona Supercomputing Center

Cristobal Samaniego - Barcelona Supercomputing Center

Fernando Cucchietti - Barcelona Supercomputing Center

Guillermo Marin - Barcelona Supercomputing Center

Carlos Tripiana - Barcelona Supercomputing Center

Mariano Vazquez - Barcelona Supercomputing Center

Hadrien Calmet - Barcelona Supercomputing Center

Add to iCal  Click here to download .ics calendar file

Add to Outlook  Click here to download .vcs calendar file

Add to Google Calendarss  Click here to add event to your Google Calendar