TY JOUR TI Reducing Air Flow Effect on High-Speed Train Current Collector with the Help of Aerodynamic Cowl KW Railway track KW railway line Angren-Pan KW passenger transportation KW current collector KW pantograph KW aerodynamic drag KW frontal airflow KW calculation of aerodynamic forces KW aerodynamic device KW CFD-modeling JO Proceedings of Petersburg Transport University AU Karimov, D.D. PY 2022 IS 19 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"