TY JOUR TI Enhancement of hydraulic calculations for metallic water pipelines within the GRIT software KW metallic water supply networks KW internal deposits KW hydraulic calculatio JO Proceedings of Petersburg Transport University AU Prodous, O.A. AU Yakubchik, P.P. AU Balashov, S.S. PY 2026 IS 23 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"