| 释义 |
ˈupwash
[up- 2.]
1. A wash of a wave up a beach. rare—1.
1923D. H. Lawrence Kangaroo v. 93 Then suddenly he saw Jack running across the sand in a bathing suit, and entering the shallow rim of a long, swift upwash.
2. Aeronaut. The upward deflection of an airstream by an aerofoil. Cf. downwash.
1936Aircraft Engin. VIII. 251/3 With highly tapered wings there is an upwash at the wing tip. 1974Sci. Amer. Mar. 79/2 The flow field in the vortex wake can be viewed as an induced upwash at the outer edge. 1979Nature 20/27 Dec. 778/2 Beyond the wing there is an upwash, which is very intense near the wingtip. |