TY JOUR TI THEORETICAL MATHEMATICAL MODELING OF HEAT EXCHANGE IN PIPES WITH TRIANGULAR AND SQUARE TURBULATORS WITH d/D=0.95÷0.90, t/D=0.25÷1.00 AND HIGH REYNOLDS NUMBERS Re=106 KW modeling KW turbulator KW pipe KW cross-section KW carrier KW Reynolds number KW heat carrying agent KW SST model JO Bulletin of Bryansk state technical university AU Lobanov, I.E. PY 2021 IS 2021 PB Bryansk State Technical University