Vassili is a Computational Scientist in the Advanced Computing for Nuclear, Particle, and Astrophysics Group in the Science Engagement section, and a member of the ECP ExaStar project, working on hardware accelerated code for neutrino radiation hydrodynamics in supernova simulations.

Prior to joining ORNL, he was at the Center for Computational Relativity and Gravitation (CCRG) at Rochester Institute of Technology, where he was he was a postdoctoral research associate and the lead developer of a new framework for numerical relativity with general relativistic magnetohydrodynamics in spherical coordinates. He obtained his Ph.D. at the University of Valencia (Spain), working on numerical relativity simulations of self-gravitating tilted accretion disks, and his M.Sci from the University of Cambridge (UK).


University of Valencia
Doctor of Philosophy (Ph.D.)
University of Cambridge
Master of Science (M.S.)


V. Mewes, Y. Zlochower, M. Campanelli, T. W. Baumgarte, Z. B. Etienne, F. G. Lopez Armengol, and F. Cipolletta, “Numerical relativity in spherical coordinates: A new dynamical spacetime and general relativistic MHD evolution framework for the Einstein Toolkit,” Phys. Rev. D 101, 104007 (2020).
V. Mewes, Y. Zlochower, M. Campanelli, I. Ruchlin, Z. B. Etienne, and T. W. Baumgarte, “Numerical relativity in spherical coordinates with the Einstein Toolkit,” Phys. Rev. D 97, 084059 (2018).
V. Mewes, J. A. Font, F. Galeazzi, P. J. Montero, and N. Stergioulas, “Numerical relativity simulations of thick accretion disks around tilted Kerr black holes,” Phys. Rev. D 93, 064055 (2016).