Kravets O. Hydrodinamics of the flow between rectangular prisms tandem located above the screen.

The objects are incompressible viscous flow between rectangular prisms, tandem located above the screen. The aim is the structure development and definition of circulating flow key parameters in inter-end space in a problem of a flow between rectangular prisms, tandem located above the screen, on the basis of the numeral decision of viscous incompressible liquid dynamics equations. A finite elements method and determining equation of viscous liquid dynamics. The new problems in two-dimensional statement about the viscous incompressible fluid flow in a square cavity with symmetric and asymmetric locally moving covers, the new problems about turbulent flow of an open and partially covered cavity without bottom above the screen by the incompressible fluid have been solved. The new three-dimension problems about viscous flow between rectangular prisms, tandem located above the screen, and also with the crosspiece between ends of prisms have been solved. The complex helical structure of three-dimensional viscous flow emergent in the inter-end space above the screen, which consists of two vortex flows, spiral descending and vortex (peripheral and central) ones, is determined. The appearance of the crosspiece between the ends of prisms reconstructs the flow structure and causes the spiral ascending stream flow about upper and lateral sides of the back prism. As a result, the crosspiece reduces drag of interface space by 1,7 times in comparison with the open interface space (Сх = 0.026). Application spheres are training courses, the numeral methods' development and approbation for solving of numerous problems of moving objects flow.