This approach greatly reduces the work required to calculate wing upwash.

The old Mech's face had brightened with a reckless upwash of memory.

Upwash is the bend that a sail induces in the approaching air flow.

This upwash makes it easier for the bird to support its own weight, reducing fatigue on migration flights.

All the birds except the first fly in the upwash from the wingtip vortices of the bird ahead.

Outside, an upwash of urban glow overlaid a yellow stain on the blackness of the lower sky.

An upwash of air created by a leading bird allows a trailing bird to glide a bit longer, thus conserving energy.

There were occasional explosions, with dust and flames shooting up, the ground sagging, then collapsing with an upwash of black dust and smoke.

The Skimmer flexed in air and hung for an instant, rolling, before it fell with a smack and was gone in an upwash of bright foam.

Sitting in this upwash region, the genoa thinks it is in a lift, so it can be trimmed farther off the centreline of the boat than the main.

The upwash assists each bird in supporting its own weight in flight, in the same way a glider can climb or maintain height indefinitely in rising air.

The raft was sucked toward the wet glow and was jerked downward behind it, the reflected upwash spinning the raft and ejecting it onward.

Actually, three satellite receivers were mounted on Figs roof, silhouetted against the low night sky that was painted a sour yellowblack by the upwash of the suburban light pollution.

Migratory birds take advantage of each other's wingtip vortices by flying in a V formation so that all but the leader are flying in the upwash from the wing of the bird ahead.

Had there been any light in this shaft, he would have seen the upwash of debris as well as the blurred uniformity of the walls that were diving so incredibly swiftly toward the planet's center.

The upwash and downwash associated with the generation of lift is the source of aerodynamic interaction between the wing and stabilizer, which translates into a change in the effective angle of attack for each surface.

The bafflement on the big mans broad, black face seemed as genuine as any lambs sweet look of innocence; the only hint of evil was entirely the theatrical effect from the upwash of the flashlight beams.

The vortices trailing a bird create an underwash which creates an induced drag for the bird creating it; at the same time these vortices create an upwash which can aid the flight of any bird following.

Studies of waldrapp ibis show that birds spatially coordinate the phase of wing flapping and show wingtip path coherence when flying in V positions, thus enabling them to maximally utilise the available energy of upwash over the entire flap cycle.

A graph gives the lift-curve slope for an annular wing as a function of its width to length ratio, the lift is assumed to act at the nacelle lip, and a correction term for the effect of the wing upwash field is added.