AERODYNAMIC FACILITY Russian patent published in 1994 - IPC

FIELD: experimental aerodynamics. SUBSTANCE: aerodynamic facility contains blades 1 mounted on inner side of cylindrical sleeve-like body 2 and blades 3 mounted on its bottom 4, coaxially disposed shell 5, motor 6, shaft 7, support 8, foundation 9, and disk 10 mounted with a small clearance equal approximately to 3 mm in the relation to free butts of body 2 and shell 5. EFFECT: enlarged operating capabilities; increased air flow velocity. 3 cl, 2 dwg