Results 41 to 50 of about 7,781 (181)
On the Rotation‐Induced Pressure‐Strain Correlation in Rotating Boundary Layer Flows
Abstract Rotation is a fundamental feature of many weather systems. The pressure‐strain correlation plays an important role in the Reynolds stress budget. However, the behavior of the pressure‐strain correlation under rotation remains insufficiently explored. This study develops a closure model for the rotation‐induced pressure‐strain correlation.
Xin Shao, Ning Zhang
wiley +1 more source
Supernovae remnant shock waves could be at the origin of cosmic rays up to energies in excess of the knee ($E\simeq3\cdot 10^{15} $eV) if the magnetic field is efficiently amplified by the streaming of accelerated particles in the shock precursor.
A. Marcowith +41 more
core +6 more sources
Vortex Line Density in a Superfluid Turbulent Wake in the Zero Temperature Limit
The quasiclassical conjecture for quantum turbulence in a pure superfluid straightforwardly leads to the definition of the superfluid Reynolds number, Res=ud/κ$Re_s=ud/\kappa$, and suggests that the effective quantum viscosity should be of the order of the circulation quantum κ$\kappa$.
Hiromitsu Takeuchi
wiley +1 more source
Assessing statistical fitting methods used for estimating turbulence parameters
Abstract Many turbulence estimates require fitting model forms, typically nonlinear expressions, to observations that have been converted into spectra. Choosing a fitting method usually depends on user preference, such as calculation ease under the spectra's presumed statistical nature or reducing computation demands when turbulence quantities must be ...
Cynthia E. Bluteau
wiley +1 more source
Large Scale Features of Rotating Forced Turbulence [PDF]
Large scale features of a randomly isotropically forced incompressible and unbounded rotating fluid are examined in perturbation theory. At first order in both the random force amplitude and the angular velocity we find two types of modifications to the ...
Gaite, Jose +2 more
core +2 more sources
Abstract The electron density‐based Péclet number has been measured for the first time in the solar wind, alongside a measure of the magnetic Reynolds number. The Péclet number is an important characteristic of energy and particle transport. High Péclet numbers indicate that particle advection dominates diffusion of energy.
T. J. E. Hand +4 more
wiley +1 more source
Quadratic Vortex Optical Pin Beam With OAM Mode Anti-Degradation Characteristic
Orbital angular momentum (OAM) signal mode crosstalk and energy loss induced by atmospheric turbulence are challenging phenomena commonly occurring in high-capacity and high-speed OAM-based free-space optical communications. In this paper, we combine the
Huahua Wang +8 more
doaj +1 more source
Nonlinear diffusion equations for anisotropic MHD turbulence with cross-helicity
Nonlinear diffusion equations of spectral transfer are systematically derived for anisotropic magnetohydrodynamics in the regime of wave turbulence.
Buchlin +19 more
core +1 more source
Turbulence in Atomic Hydrogen [PDF]
Understanding the properties of interstellar turbulence is a great intellectual challenge and the urge to solve this problem is partially motivated by a necessity to explain the star formation mystery.
Lazarian, A.
core +2 more sources
Abstract Turbulence in the upper troposphere and lower stratosphere (UTLS) plays an important role in total energy dissipation and in the transport and mixing of heat, momentum, and atmospheric constituents while also posing significant hazards to aviation.
Soo‐Hyun Kim +7 more
wiley +1 more source

