upwashn.
1. A wash of a wave up a beach. rare.
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1923 D. 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. Aeronautics. The upward deflection of an airstream by an aerofoil. Cf. downwash n.
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society > travel > air or space travel > specific movements or positions of aircraft > aerodynamic forces and concepts > [noun] > lift > upward deflection of airstream
upwash1936
1936 Aircraft Engin. VIII. 251/3 With highly tapered wings there is an upwash at the wing tip.
1974 Sci. Amer. Mar. 79/2 The flow field in the vortex wake can be viewed as an induced upwash at the outer edge.
1979 Nature 20/ 27 Dec. 778/2 Beyond the wing there is an upwash, which is very intense near the wingtip.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2021).
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