TY - JOUR
T1 - A Scalable Domain Decomposition Method for Ultra-Parallel Arterial Flow Simulations
AU - Leopold Grinberg & George Em Karniadakis
JO - Communications in Computational Physics
VL - 5
SP - 1151
EP - 1169
PY - 2008
DA - 2008/11
SN - 4
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/cicp/7832.html
KW - 
AB - <p style="text-align: justify;">Ultra-parallel flow simulations on hundreds of thousands of processors require new multi-level domain decomposition methods. Here we present such a new
two-level method that has features both of discontinuous and continuous Galerkin
formulations. Specifically, at the coarse level the domain is subdivided into several
big patches and within each patch a spectral element discretization (fine level) is employed. New interface conditions for the Navier-Stokes equations are developed to
connect the patches, relaxing the C<sup>0</sup>continuity and minimizing data transfer at the
patch interface. We perform several 3D flow simulations of a benchmark problem and
of arterial flows to evaluate the performance of the new method and investigate its
accuracy.</p>