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Figure 1: Tidal interaction between the spiral galaxy NGC 169 and a smaller companion [1]. The tidal force or tide-generating force is a gravitational effect that stretches a body along the line towards and away from the center of mass of another body due to spatial variations in strength in gravitational field from the other body.
Tidal heating (also known as tidal working or tidal flexing) occurs through the tidal friction processes: orbital and rotational energy is dissipated as heat in either (or both) the surface ocean or interior of a planet or satellite. When an object is in an elliptical orbit, the tidal forces acting on it are stronger near periapsis than near ...
In thermodynamics, dissipation is the result of an irreversible process that affects a thermodynamic system. In a dissipative process, energy ( internal , bulk flow kinetic , or system potential ) transforms from an initial form to a final form, where the capacity of the final form to do thermodynamic work is less than that of the initial form.
Tidal acceleration is an effect of the tidal forces between an orbiting natural satellite (e.g. the Moon) and the primary planet that it orbits (e.g. Earth). The acceleration causes a gradual recession of a satellite in a prograde orbit (satellite moving to a higher orbit, away from the primary body, with a lower orbital velocity and hence a ...
About 98% of this dissipation is by marine tidal movement. [57] Dissipation arises as basin-scale tidal flows drive smaller-scale flows which experience turbulent dissipation. This tidal drag creates torque on the moon that gradually transfers angular momentum to its orbit, and a gradual increase in Earth–moon separation.
The Love number h is defined as the ratio of the body tide to the height of the static equilibrium tide; [3] also defined as the vertical (radial) displacement or variation of the planet's elastic properties.
Tidal locking between a pair of co-orbiting astronomical bodies occurs when one of the objects reaches ... is the dissipation function of the ... Physics portal;
Seismologists have determined that microseismic events are correlated to tidal variations in Central Asia (north of the Himalayas); [citation needed] see: tidal triggering of earthquakes. Volcanologists use the regular, predictable Earth tide movements to calibrate and test sensitive volcano deformation monitoring instruments; tides may also ...