безвихровий потік
free vortex
free vortex sheet
accident-free flying / mishap-free flying
mishap-free flying / accident-free flying
aerodynamic drag at free-molecule flow
theory of free-molecule flow
boss vortex
bound vortex
blade-tip vortex
onset vortex
separated vortex
toroidal vortex
transient vortex
vortex
vortex combustion chamber
vortex generator
cast-off vortex
isolated vortex
Joukovski vortex system
Karman vortex path
Karman vortex street
rectilinear vortex
rigid vortex
ring vortex
spiral vortex
vortex (pl. votrices)
vortex core
vortex field
vortex filament
vortex line
vortex motion
vortex pair