Towards large-scale three-dimensional blood flow simulations in realistic geometries Céline Caldini-Queiros, Vincent Chabannes, Mourad Ismail, Goncalo Pena, Christophe Prud’homme, Marcela Szopos and Ranine Tarabay ESAIM: Proc., 43 (2013) 195-212 Published online: 13 December 2013 DOI: 10.1051/proc/201343013