Inertial waves are an essential feature of rotating fluids. They play a particularly important role in the process of two dimensionalisation by rotation of the flow field. The basic theory of linear inertial waves is presented here. Two limiting cases are then discussed in more detail: (i) when the frequency is just below the Coriolis frequency (“near-inertial waves”), and (ii) when the frequency of oscillations is small compared to the Coriolis frequency 2Ω. Lastly, experimental studies showing resonance phenomena of inertial waves are described.
KeywordsVelocity Component Rotation Axis Group Velocity Wave Motion Fluid Element
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