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Your search keyword '"Yuan Xing-jie"' showing total 2 results
Start Over Author "Yuan Xing-jie" Topic physics - fluid dynamics
2 results on '"Yuan Xing-jie"'

1. Nonlinear dynamical systems and bistability in linearly forced isotropic turbulence

Author

Ran, Zheng and Yuan, Xing-jie

Subjects
Physics - Fluid Dynamics, Condensed Matter - Statistical Mechanics, Nonlinear Sciences - Chaotic Dynamics
Abstract

In this letter, we present an extensive study of the linearly forced isotropic turbulence. By using analytical method, we identify two parametric choices, of which they seem to be new as far as our knowledge goes. We prove that the underlying nonlinear dynamical system for linearly forced isotropic turbulence is the general case of a cubic Lienard equation with linear damping. We also discuss a Fokker-Planck approach to this new dynamical system,which is bistable and exhibits two asymmetric and asymptotically stable stationary probability densities., Comment: 7 pages, 1 figure

Published
2013

2. One-dimensional energy spectra in three-dimensional incompressible homogeneous isotropic turbulence

Author

Ran Zheng, Wang Yao-yao, and Yuan Xing-jie

Subjects
Physics, Homogeneous isotropic turbulence, Statistical Mechanics (cond-mat.stat-mech), Nonlinear Sciences - Exactly Solvable and Integrable Systems, Turbulence, Isotropy, Fluid Dynamics (physics.flu-dyn), FOS: Physical sciences, Reynolds number, Mathematical Physics (math-ph), Physics - Fluid Dynamics, Physics::Fluid Dynamics, symbols.namesake, Exact solutions in general relativity, Compressibility, symbols, Statistical physics, Exactly Solvable and Integrable Systems (nlin.SI), Scaling, Taylor microscale, Condensed Matter - Statistical Mechanics, Mathematical Physics
Abstract

The paper investigates the detailed features of one-dimensional energy spectra in three-dimensional isotropic turbulence, based on the exact solution of Karman-Howarth equation. Particular interest will be paid on the degree to which spectral scaling can lead the spectral data to be collapsed. The theory appears to be consistent with the wealth of experimental data (G.Comte-Bellot and S. Corrsin, 1971) at least in low Taylor microscale Reynolds number., 13 pages, 4figures

Published
2013

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