inertial oscillation نوش ِ لختیناک، ~ لختیمند naveš-e laxtinâk, ~ laxtimand Fr.: oscillation inertielle A periodic motion of a particle that moves, free from external forces, over
the surface of a rotating sphere, such the Earth.
Inertial oscillations result from the → Coriolis force.
For example, a hockey puck launched on a big enough lake in the northern hemisphere
would turn to the right (east) and eventually loop back to nearly the initial
point (actually west of that point). The time it takes for the huckey puck
to return can be computed with the → Coriolis frequency.
Meteo.: An anticyclonic (clockwise) rotation in the northern hemisphere,
with the Coriolis force providing the → centripetal
acceleration with period of 2π/f, where f is the
Coriolis frequency. The opposite should occur
in the southern hemisphere.
See also: → inertial; → oscillation. |
