TY JOUR TI TWO-DIMENSIONAL VORTEX SOURCE KW mathematical modeling KW differential equations of motion KW boundary conditions of the problem KW two-dimensional vortex sources KW potential water flows KW problems of practical hydraulics JO Construction and Architecture AU Kochanenko, V.N. AU Burtseva, O.A. AU Aleksandrova, M.S. PY 2020 IS 8 PB Publishing Center RIOR