A note on the spectra and decay of rotating homogeneous turbulence

In this Letter, the dynamics of spectral energy transfer in rotating homogeneous turbulence is investigated. It is shown that the wave number kΩ=(Ω3/ε)1/2 (defined by the rotation speed Ω and dissipation ε) determines the turbulence length scale, above which rotation effects on spectral transfer and on energy spectrum form are important. From the rotation-modified spectrum, turbulence decay laws are also inferred.