For citations:

Lobanov I.E. MATHEMATICAL MODELING OF HEAT EXCHANGE IN DIRECT FLAT CHANNELS AND DIRECT ROUND PIPES WITH ROUGH WALLS UNDER THE SYMMETRIC HEAT SUPPLY. Herald of Dagestan State Technical University. Technical Sciences. 2017;44(2):126-141. (In Russ.) https://doi.org/10.21822/2073-6185-2017-44-2-126-141