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Total energy spectrum for ideal (lines) and dissipative (symbols) runs at , 0.4 and 1.0.
Contours of the electric current density for the dissipative run (left) and the ideal run (right) at (top to bottom) .
(a) Evolution of the kurtosis of for ideal (solid line) and dissipative (dashed line) runs. Later, and at , respectively. (b) PDFs of longitudinal Elsässer increments , for ideal and dissipative runs at for small scale , and large scale ; is variance of .
The evolution of and for the ideal run (lines) and dissipative run (symbols) at , respectively. (d): scale-dependent kurtosis of , , for the ideal run (lines) and dissipative run (symbols) at (solid, squares), 0.4 (dashed, triangles) and 1.0 (dotted, circles). At the ideal and dissipative cases differ greatly—the dissipative case remains intermittent; the ideal case approaches equipartition and later become Gaussian.
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