Energy and enstrophy dissipation in steady state 2-d turbulence
نویسندگان
چکیده
where U is the root-mean-square velocity, kf is a wavenumber (inverse length scale) related with the forcing function, and Re = U/νkf . The positive coefficients C1 and C2 are uniform in the the kinematic viscosity ν, the amplitude of the driving force, and the system size. We compare these results with previously obtained bounds for body forces involving only a single length scale, or for velocity dependent a constant-energy-flux forces acting at finite wavenumbers. Implications of our results are discussed.
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تاریخ انتشار 2006