[PDF] Top 20 Vortex scaling ranges in two dimensional turbulence

... in two-dimensional turbulence, including formation mechanisms, implications for classical similarity and inertial range theories, and character- istics of the vortex ...temporal scaling ... See full document

... of two-dimensional vortex points and inertial tracer particles in two-component counterflowing superfluid ...by vortex points which model three-dimensional quantized vortex ... See full document

... and vortex surfaces are important for many aspects in theoretical fluid ...a vortex surface is a Lagrangian structure (material surface), which is topologically invariant in time provided that the velocity ... See full document

... one- dimensional MHD waves propagating under different angles to the ambient magnetic field (Petviashvili and Pokhotelov, ...essentially two- or three-dimensional. Two-dimensional ... See full document

... (MHD) turbulence on spa- tial scales smaller than the ion-inertial ...of turbulence energy, for example in wave– particle ...MHD turbulence, which is indicative of a dispersive process converting ... See full document

... the vortex population as a whole ...identical vortex populations have ...distinct scaling ranges with approximately the predicted slopes, the overall shape of the population shows some ... See full document

... in two-dimensional turbulence is the degree to which the inverse energy cascade is quasi-Gaussian and exhibits an energy spectrum satisfying E(k) ∼ k −5/3 , as predicted by Kraichnan ...in ... See full document

... The turbulence numerical simulation methods provided by CFD include three methods: direct numerical simulation method, Reynolds average method and large eddy simulation ...on turbulence statistical theory ... See full document

... power-law scaling, then the picture of an initial reservoir evolving into an extremely polarized spectrum with energy residing at the lower-wavenumber end and enstrophy residing at the higher-wavenumber end (with ... See full document

... ∇ · v = 0. (1) Here, f ( x , t) is a forcing term (discussed below) and p( x , t) is the pressure field. The parameters ν (viscosity) and α (Ekman friction coefficient) control the dissipation at small and large scales ... See full document

... The Sun also has a magnetic solar cycle, which is approximately twice the sunspot cycle, known as the 22 year Hale cycle after George Ellery Hale (1868 − 1938), whose observations on the polarity of sunspots led to its ... See full document

... strong turbulence, are entered in these works without investigating a question – do these initial nonlinear equations allow the existence of the struc- tures with such scales, amplitudes and velocities? Contrary ... See full document

... Abstract. Turbulence is one of the unsolved problems in fluid ...3D turbulence is very complex and difficult to achieve; while 2D turbulence is similar to 3D turbulence in many properties, and ... See full document

... in two-dimensional ...Batchelor’s scaling theory. Instead, in § 4 we demonstrate that Batchelor’s scaling arguments go through virtually unchanged if we use the enstrophy itself in place of ... See full document

... strong vortex turbulence (Aburjania et ...plasma turbulence represents an ensemble of two-dimensional drift- Alfvén vortices of the electron skin size: each active area of the plasma ... See full document

... interest. The cell size growth ratio is limited to 1.1, and cell size matching is ensured at all edges. LES is highly sensitive to abrupt changes in cell size. In LES, both discretization error and turbulence ... See full document

... exist two major vortex structures in the U-shaped groove with this ratio: The front vortex is the primary one with negative vor- ticity, generated by the separated shear layer from the front edge of ... See full document

... reference pressure, the other to measure the difference between the total head at a station and the static pressure at the I°Elference station... Alcohol was used as the li.[r] ... See full document

... field information, which can then be analyzed using the LCS analysis implemented in this study. Given volumetric DPIV data for swimming or flying animals (or corresponding data computed in numerical simulations), a true ... See full document

... temperature An experimental investigation of the mean velocity, two-dimensional in wall fields curved and turbulence plane and jets: Coanda effect.. University of Minnesota,.[r] ... See full document