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Showing 1 to 6 of 6 for “"Inverse energy cascade"”.
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Symmetry Breaking and the Inverse Energy Cascade in a Plasma
… demonstration of symmetry breaking driving the inverse energy cascade in a quasi-two dimensional plasma system. The application of dynamic and rotating electrostatic bias as well as plans for applying turbulent feedback are discussed.
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Characterization of low-frequency electric potential oscillations near the edge of a plasma confined by a levitated magnetic dipole
… analysis of the fluctuations show that that an inverse cascade of energy is present at times in LDX. The cascade transfers energy from small spatial scale structures to large scale structures. The wavenumber spectrum is xc k-1.4 to cx k-25 at high wavenumbers, which encompasses the inverse …
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Experiments in turbulent soap-film flows: Marangoni shocks, frictional drag, and energy spectra
… possible in two dimensions: the ``enstrophy cascade,'' for which the spectral exponent $\alpha=3$, and the ``inverse energy cascade,'' for which the spectral exponent $\alpha=5/3$. We find that the functional relation between the frictional drag $f$ and the Reynolds number Re depends on the …
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Exact coherent structures and non-universality in the direct cascade in two-dimensional turbulence
… often characterized by the presence of various cascades, which transport various quantities across length scales. This dissertation focuses on turbulence confined in two-dimensions, which has two cascades: an inverse (energy) cascade that moves energy towards increasingly larger scales, and a …
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Shear flow instabilities in stratified magnetohydrodynamics
… we see that a weak magnetic field halts the inverse energy cascade, in a similar manner to how Balmforth (2002) showed that weak stratification does. At Pe,Rm»1, the weakly nonlinear model predicts boundary layers in the total temperature and magnetic potential fields at the inflection points …
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The Statistical Theory of Stationary Turbulence
… dominated, respectively, by a downward enstrophy cascade and an upward energy cascade. Finally, we contribute to the theory of wavelet transforms by demonstrating the existence of a Gibbs phenomenon for the continuous wavelet transform; the overshoot of the reconstructed function, at points of …