capillary wave


Also found in: Wikipedia.

capillary wave

[′kap·ə‚ler·ē ‚wāv]
(fluid mechanics)
A wave occurring at the interface between two fluids, such as the interface between air and water on oceans and lakes, in which the principal restoring force is controlled by surface tension.
A water wave of less than 1.7 centimeters. Also known as capillary ripple; ripple.
References in periodicals archive ?
The surface wave called capillary wave generated by the radiation of acoustic wave from the SAW device surface was capable of atomization when the liquid layer on the surface was half a millimeter or less.
In the theory of SDFM, sea wave is envisaged as a superposition of gravity wave configuration approximated by planar facets and capillary wave configuration added on the planar facets at resonant wavenumber.
[[kappa].sub.c] is the spatial capillary wave vector, whose direction is along the projection line [q.sub.l]; of the scattering vector q = k([k.sub.s]-[k.sub.1]) on the tilted plane of the rough sea facet.
Concerning the marine remote sensing of SAR, in the case of moderate incident angles, the large-scale gravity wave spectrum is [S.sub.1] (k) and the small-scale capillary wave related to Bragg resonance is [S.sub.2] (k).
First, hydrodynamic instability sets in giving rise to wavy interfaces; as the disturbance grows, the fiber breaks up into drops; this is the capillary wave mechanism.
Kwoh and Lake also suggested that the dominant scattering from the wave crest could be approximated by wedge scattering and analyzed the relationship of scattering fields from capillary wave and the wedge-shaped crest with small perturbation method (SPM) and geometrical theory of diffraction (GTD) respectively [25].
These waves are commonly known as capillary waves. The ultrasonic atomizer are mostly used in manufacturing applications such as adding moisture to a gas stream, coating fabrics and injecting very small amounts of a liquid into a reactor.
Considering the full irrotational water wave system with surface tension and no gravity in two dimensions (the capillary waves systems), Ionescu and Pusateri prove global regularity and modified scattering for suitably small and localized perturbations of a flat interface.
Impact from a water drop causes an upward "rebound" jet surrounded by circular capillary waves -- Wikimedia Commons CAIRO -- 2 December 2018: Egypt has won a seat on the Board of Governors 2019 -- 2021 of the World Water Council, as Chairman of the National Water Research Center (NWRC) Ramadan Khaled became member of the government organizations quota.
In place of the beam of ultrasonic waves, when spraying in the fountain on the surface of the jet excited capillary waves. The reason for the excitation of capillary waves are pressure surges due to the collapse of cavitation bubbles.
Vanden-Broeck, "Large-amplitude capillary waves in electrified fluid sheets," Journal of Fluid Mechanics, no.