Simulation of a stochastic vortex tangle
نویسندگان
چکیده
منابع مشابه
Energy Spectrum of Vortex Tangle
The energy spectrum of superfluid turbulence in the absence of the normal fluid is studied numerically. In order to discuss the statistical properties, we calculated the energy spectra of the 3D velocity field induced by dilute and dense vortex tangles respectively, whose dynamics is calculated by the BiotSavart law. In the case of a dense tangle, the slope of the energy spectrum is changed at ...
متن کامل2D Numerical Simulation of a Micro Scale Ranque-Hilsch Vortex Tube
In this study, fluid flow and energy separation in a micro-scale Ranque-HilschVortex Tube are numerically investigated. The flow is assumed as 2D, steady,compressible ideal gas, and shear-stress-transport SST k-W is found to be a bestchoice for modeling of turbulence phenomena. The results are in a good agreementwith the experimental results reported in the literature. The results show that f...
متن کاملEvolution of a superfluid vortex filament tangle driven by the Gross-Pitaevskii equation.
The development and decay of a turbulent vortex tangle driven by the Gross-Pitaevskii equation is studied. Using a recently developed accurate and robust tracking algorithm, all quantized vortices are extracted from the fields. The Vinen's decay law for the total vortex length with a coefficient that is in quantitative agreement with the values measured in helium II is observed. The topology of...
متن کاملa study on thermodynamic models for simulation of 1,3 butadiene purification columns
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
Energy Spectrum of the Random Velocity Field Induced by a Gaussian Vortex Tangle in HeII
Using the Gaussian model of the vortex tangle (VT) arising in the turbulent superfluid HeII, we calculate the energy spectrum E(k) of the 3D random velocity field induced by that VT. If the VT is assumed to be a purely fractal object with Haussdorf dimension HD, the E(k) is a power-like function E(k) ∝ k−2+HD . A more realistic VT in HeII is a semi-fractal object, behaving as smooth line for sm...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Low Temperature Physics
سال: 2003
ISSN: 1063-777X,1090-6517
DOI: 10.1063/1.1596789