SC is the International Conference for
 High Performnance Computing, Networking, Storage and Analysis

SCHEDULE: NOV 13-19, 2010

Brain Blood Flow: Multi-scale Simulations and Visualization

SESSION: Research Poster Reception


TIME: 5:15PM - 7:00PM

AUTHOR(S):Leopold Grinberg, Joseph Insley, Mike Papka, George Karniadakis

ROOM:Main Lobby

Interactions of blood flow in the human brain occur between different scales, determined by flow features in the large arteries (above 0.5mm diameter), arterioles, and the capillaries (of 5 μm). To simulate such multi-scale flow we develop mathematical models, numerical methods, scalable solvers and visualization tools. We employ Nektar – a high order spectral/hp element code featuring multi-patch domain decomposition for continuum flow simulations, and modified DPD-LAMMPS for mesoscopic simulations. These codes are coupled via Multi-level Communicating Interface to exchange data required by interface conditions. The visualization software is based on ParaView and Nektar utilities accessed through the ParaView GUI. Our poster focuses on details of coupling Nektar and DPD-LAMMPS, including multi-level parallelism and scalability; and on a recently developed interactive tool for multi-resolution visualization of data computed in coupled runs. We also present results of multi-scale simulations at the continuum and individual blood cell levels.

Chair/Author Details:

Leopold Grinberg - Brown University

Joseph Insley - Argonne National Laboratory

Mike Papka - Argonne National Laboratory

George Karniadakis - Brown University

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