Results 21 to 30 of about 395,331 (337)

On the Variation of Intermittency of Fast and Slow Solar Wind With Radial Distance, Heliospheric Latitude, and Solar Cycle

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Intermittency, an important property of astrophysical plasma turbulence, is studied extensively during last decades from in-situ measurements of the solar wind plasma and magnetic field in the ecliptic plane and at higher latitudes, and heliocentric ...
Anna Wawrzaszek   +2 more
doaj   +1 more source

Universality of the Route to Chaos -- Exact Analysis [PDF]

open access: yes, 2017
The universality of the route to chaos is analytically proven for countably infinite number of maps by proposing the Super Generalized Boole (SGB) transformations.
Okubo, Ken-ichi, Umeno, Ken
core   +2 more sources

In--out intermittency in PDE and ODE models [PDF]

open access: yes, 2001
We find concrete evidence for a recently discovered form of intermittency, referred to as in--out intermittency, in both PDE and ODE models of mean field dynamos.
Andrew Tworkowski   +38 more
core   +2 more sources

Model of Continuous Random Cascade Processes in Financial Markets

open access: yesFrontiers in Physics, 2020
This article presents a continuous cascade model of volatility formulated as a stochastic differential equation. Two independent Brownian motions are introduced as random sources triggering the volatility cascade: one multiplicatively combines with ...
Jun-ichi Maskawa, Koji Kuroda
doaj   +1 more source

Air Temperature Intermittency and Photofragment Excitation

open access: yesMeteorology, 2023
Four observational results: the intermittency of air temperature; its correlation with ozone photodissociation rate; the diurnal variation of ozone in the upper stratosphere; and the cold bias of meteorological analyses compared to observations, are ...
Adrian F. Tuck
doaj   +1 more source

Data-Driven Transition Models for Aeronautical Flows with a High-Order Numerical Method

open access: yesAerospace, 2022
Over the past years, there has been innovative ideas about data-driven turbulence modeling proposed by scholars all over the world. This paper is a continuity of these significant efforts, with the aim of offering a better representation for turbulence ...
Yanjun Chen, Shengye Wang, Wei Liu
doaj   +1 more source

A Correction and Discussion on Log-Normal Intermittency B-Model

open access: yesFluids, 2019
This paper discusses a turbulent intermittency model introduced in 1990, the B-model. It was found that the original manuscript which introduced the B-model contained a couple arithmetic errors in the equations.
Christopher Locke   +2 more
doaj   +1 more source

Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability

open access: yesAtmosphere, 2023
Many issues pioneered by Jackson Herring deal with how nonlinear interactions shape atmospheric dynamics. In this context, we analyze new direct numerical simulations of rotating stratified flows with a large-scale forcing, which is either random or ...
Annick Pouquet   +3 more
doaj   +1 more source

Energy cascade and intermittency in helically decomposed Navier–Stokes equations [PDF]

open access: yes, 2017
We study the nature of the triadic interactions in Fourier space for three-dimensional Navier–Stokes equations based on the helicity content of the participating modes.
G. Sahoo, Luca Biferale
semanticscholar   +1 more source

Wavelet-Based Multiscale Intermittency Analysis: The Effect of Deformation

open access: yesEntropy, 2023
Intermittency represents a certain form of heterogeneous behavior that has interest in diverse fields of application, particularly regarding the characterization of system dynamics and for risk assessment.
José M. Angulo, Ana E. Madrid
doaj   +1 more source

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