(AIRY, G.B.). Tides and waves. (Published in: Encyclopaedia Metropolitana vol. 5). Lond., (1842). 241-396 pp. W. 6 plates (1 fold.). 4°. Cont. h. mor. (Spine partly gone, corners bumped/worn, plates a bit foxed/browned).Sir George Biddell Airy (1801-1892) was an English mathematician and astronomer, Astronomer Royal from 1835 to 1881. First description of the - what was later called - 'Airy wave theory': In fluid dynamics, Airy wave theory (often referred to as linear wave theory) gives a linearised description of the propagation of gravity waves on the surface of a homogeneous fluid layer. The theory assumes that the fluid layer has a uniform mean depth, and that the fluid flow is inviscid, incompressible and irrotational. Airy wave theory is often applied in ocean engineering and coastal engineering for the modelling of random sea states – giving a description of the wave kinematics and dynamics of high-enough accuracy for many purposes.
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