gravity wave

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gravity wave

[′grav·əd·ē ‚wāv]
(fluid mechanics)
A wave at a gas-liquid interface which depends primarily upon gravitational forces, surface tension and viscosity being of secondary importance.
A wave in a fluid medium in which restoring forces are provided primarily by buoyancy (that is, gravity) rather than by compression.
References in periodicals archive ?
Doppler spreading of internal gravity waves by an inertia-wave packet.
Even weak gravity waves may innate turbulence," explains coauthor John Knox, a specialist in atmospheric science.
The barotropic equations are akin to the shallow water equations and govern the evolution of the gravity waves.
Variations in the regularity of the pulses could be the tell-tale sign that a pulsar has been tossed about by passing gravity waves.
If one accelerates a piece of matter in this standing wave field all of the waves present (the gravity waves from all other matter react with the in-out waves of the piece of matter) interact to prevent movement.
The two separate LIGO installations, 2,000 miles apart and costing $160 million each, are necessary to make sure the telescopes actually detect gravity waves from space--not Earth.
In contrast to the conventional theoretical approach to stellar evolution, the data-driven approach of MAMSIE will allow us to include angular momentum transport due to internal gravity waves, as well as mixing prescriptions for turbulent entrainment, from coupling of the output of 3D hydrodynamical simulations of these phenomena to specialised seismic observables of relevance for massive stars.
The observation itself isn't Earth-shaking as researchers know that these particular swirls or "B-modes" originated in conventional astrophysics, but the result suggests that scientists are closing in on a much bigger prize: B-modes spawned by gravity waves that rippled through the infant universe.
It is these cancellations that could allow gravity waves to permeate through both intense quantum fields as well as the assumed vacuum of general space.
He directs this presentation of the physics and math describing internal gravity waves to students with some background in multivariable calculus, ordinary differential equations, and partial differential equations (useful, but not necessary).