Assessment of Several Advanced Numerical Algorithms Implemented in the CFD Code SINF/Flag-S for Supercomputer Simulations Authors Evgueni M. Smirnov Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russian Federation Dmitri K. Zaitsev Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russian Federation Alexander A. Smirnovsky Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russian Federation Elizaveta V. Kolesnik Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russian Federation <