搜索结果: 1-13 共查到“理论物理学 turbulence”相关记录13条 . 查询时间(0.159 秒)
Kelvin-Wave Cascade and Decay of Superfluid Turbulence
Kelvin wave distortion vortex line cryogenic superfluid turbulence dynamics
2014/12/20
Kelvin waves (kelvons), the distortion waves on vortex lines, play a key part in the relaxation of superfluid turbulence at low temperatures. We present a weak-turbulence theory of kelvons. We show th...
Scale-Separation Scheme for Simulating Superfluid Turbulence: Kelvin-Wave Cascade
Kelvin from the distorted wave of vortex superfluid turbulence low temperature the numerical simulation of vortex line
2014/12/20
A Kolmogorov-type cascade of Kelvin waves—the distortion waves on vortex lines—plays a key part in the relaxation of superfluid turbulence at low temperatures. We propose an efficient numeric scheme f...
Scanning Superfluid-Turbulence Cascade by its Low-Temperature Cutoff
Kolmogorov low temperature quantization the vortex line density coefficient of friction
2014/12/19
On the basis of a recently proposed scenario of the transformation of the Kolmogorov cascade into the Kelvin-wave cascade, we develop a theory of low-temperature cutoff. The theory predicts a specific...
Kolmogorov and Kelvin-wave cascades of superfluid turbulence at T=0: What lies between
Vorticity quantitative long wave physics super fluid turbulent flow the vortex line
2014/12/19
As long as vorticity quantization remains irrelevant for long-wave physics, superfluid turbulence supports a regime macroscopically identical to the Kolmogorov cascade of a normal liquid. At high enou...
On the velocity distribution in homogeneous isotropic turbulence: correlations and deviations from Gaussianity
homogeneous isotropic turbulence deviations Gaussianity Fluid Dynamics
2011/8/1
Abstract: We investigate the single-point probability density function of the velocity in three-dimensional stationary and decaying homogeneous isotropic turbulence. To this end we apply the statistic...
An invariant in shock clustering and Burgers turbulence
Shock clustering stochastic coalescence kinetic theory integrable systems Loitsiansky invariant
2011/7/28
Abstract: 1-D scalar conservation laws with convex flux and Markov initial data are now known to yield a completely integrable Hamiltonian system. In this article, we rederive the analogue of Loitsian...
An invariant in shock clustering and Burgers turbulence
Shock clustering, stochastic coalescence, kinetic theory, Burgers turbulence, integrable systems, Loitsiansky invariant
2011/9/14
1-D scalar conservation laws with convex flux and Markov initial data are now known to yield a completely integrable Hamiltonian system. In this article, we rederive the analogue of Loitsiansky’s inva...
Technical approach for the design of a high-resolution spectral model on a sphere:Application to decaying turbulence
Technical approach high-resolution spectral model decaying turbulence
2009/11/12
Several technical suggestions to construct a high-resolution spectral model on a sphere (the T682 barotropic model) are presented and their implementation of FORTRAN77 libraries is provided as a free ...
Dynamical Scaling and the Finite Capacity Anomaly in 3-Wave Turbulence
Dynamical Scaling Finite Capacity Anomaly 3-Wave Turbulence
2010/4/7
We present a systematic study of the dynamical scaling process leading to the establishment of the Kolmogorov--Zakharov (KZ) spectrum in weak 3-wave turbulence. In the finite capacity case, in which t...
Chaotic properties of a fully developed model turbulence
Chaotic properties fully developed model turbulence
2009/11/3
Shell models of turbulence have been employed as toy models which, in their chaotic states, show statistical properties similar to real fluid turbulence, including Kolmogorov energy spectrum and inter...
Cascade of Random Rotation and Scaling in a Shell Model
Intermittent Turbulence
intermittent orbit unstable quasi-periodic orbit critical scaling extended
self-similarity (ESS)
2007/8/15
2006Vol.46No.6pp.1074-1080DOI:
Cascade of Random Rotation and Scaling in a Shell Model
Intermittent Turbulence
SUN Peng,1,2 CHEN Shi-Gang,3 and WANG Guang-Rui3
1 Graduat...
Renormalization Group Theory and Its Application to
Thermally-Induced Turbulence
renormalization group turbulence
2007/8/15
2004Vol.41No.4pp.599-604DOI:
Renormalization Group Theory and Its Application to
Thermally-Induced Turbulence
CAO Yi-Gang1,2 and W.K. Chow1
1 Department of Building Ser...
Basic Pattern in Atmospheric Turbulence Model
atmospheric turbulence model Burgers-type
equations projective Riccati equations
2007/8/15
2004Vol.41No.6pp.845-848DOI:
Basic Pattern in Atmospheric Turbulence Model
FU Zun-Tao,1,2 ZHANG
Lin,1 LIU Shi-Da,1,2 and
LIU Shi-Kuo1
1 School of Physics, Peking Univer...