ATACAMA WORKSHOP, June 15-17 2000


Local Seeing Effects	ATACAMA WORKSHOP, Ithaca NY M. Sarazin, June 15-17 2000, 14/14

Local Seeing Effects

ATACAMA WORKSHOP, Ithaca NY

M. Sarazin, June 15-17 2000, 14/14

MIRROR SEEING (II)

The thickness of the boundary layer over a flat plate increases with the distance to the edge in the same way as with the flow velocity.

When a mirror is warmer that the air in a flushed enclosure, the convective cells cannot reach equilibrium. The flushing velocity must be large enough so as to decrease significantly (down to 10-30cm) the thickness turbulence over the whole diameter of the mirror