TY JOUR TI Evaluation influence of the scale effect in the study hydrodynamic characteristics lines of flat units KW flat unit KW modeling KW similarity criteria KW scale effect. JO Actual directions of scientific researches of the XXI century: theory and practice AU Perfilev, P.. AU Shadrina, Y.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov