ALCF Science 1 - Argonne National Laboratory
ALCF Science 1 - Argonne National Laboratory
ALCF Science 1 - Argonne National Laboratory
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
argonne leadership computing facility<br />
Materials <strong>Science</strong><br />
Large-Scale Condensed Matter and Fluid Dynamics Simulations<br />
Simulating Brain Blood Flow to Better Diagnose, Treat Aneurisms<br />
Patient-specific brain blood flow simulations are aiming to improve<br />
diagnosis and treatment of aneurisms. Researchers from University<br />
College London have made significant progress in studying three<br />
patients’ internal carotid artery aneurysms. In conducting the<br />
simulations, the researchers used HemeLB, a sparse-geometry<br />
optimized lattice Boltzmann code, on Intrepid, the 557-teraflops IBM<br />
Blue Gene/P, at the <strong>Argonne</strong> Leadership Computing Facility. Intrepid<br />
allows flow calculation at speeds fast enough to be clinically useful.<br />
The simulations involved a number of steps—acquiring angiography<br />
data, transferring it to local resources, pre-processing locally, staging<br />
to remote resources for simulation, and reporting (using interactive<br />
steering and visualization).<br />
INCITE Allocation:<br />
40 Million Hours<br />
INCITE PROGRAM<br />
37<br />
0.00<br />
0.03 0.05 0.08 0.10 (m/s) 0.00 0.25 0.50 0.75 1.00<br />
(Pa)<br />
90.00 92.50 95.00 97.50 100.00<br />
(mmhg)<br />
0.00<br />
0.25<br />
0.50<br />
0.75<br />
1.00<br />
(Pa)<br />
A visualization of one<br />
aneurysm. Top Left: volume<br />
rendered velocity. Top<br />
Right: volume-rendered<br />
von Mises stress. Bottom<br />
Left: external pressure and<br />
streaklines. Bottom Right:<br />
external von Mises stress<br />
and streaklines.<br />
Contact Peter Coveney<br />
University College London | p.v.coveney@ucl.ac.uk
Change language