Eulerian and Lagrangian second-order statistics of superfluid He4 grid turbulence
نویسندگان
چکیده
منابع مشابه
asymptotic property of order statistics and sample quntile
چکیده: فرض کنید که تابعی از اپسیلون یک مجموع نامتناهی از احتمالات موزون مربوط به مجموع های جزئی براساس یک دنباله از متغیرهای تصادفی مستقل و همتوزیع باشد، و همچنین فرض کنید توابعی مانند g و h وجود دارند که هرگاه امید ریاضی توان دوم x متناهی و امیدریاضی x صفر باشد، در این صورت می توان حد حاصلضرب این توابع را بصورت تابعی از امید ریاضی توان دوم x نوشت. حالت عکس نیز برقرار است. همچنین ما با استفاده...
15 صفحه اولSuperfluid Turbulence and Pulsar Glitch Statistics
Experimental evidence is reviewed for the existence of superfluid turbulence in a differentially rotating, spherical shell at high Reynolds numbers (Re > ∼ 10 ), such as the outer core of a neutron star. It is shown that torque variability increases with Re, suggesting that glitch activity in radio pulsars may be a function of Re as well. The Re distribution of the 67 glitching radio pulsars wi...
متن کاملEulerian and Lagrangian Statistics from high resolution Numerical Simulations of weakly compressible turbulence
By R. BENZI, L. BIFERALE, R. FISHER, D. Q. LAMB and F. TOSCHI Department of Physics and INFN, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy 2 Department of Physics, University of Massachusetts at Dartmouth, 285 Old Westport Road, Dartmouth, Ma. 02740 3 Center for Astrophysical Thermonuclear Flashes, The University of Chicago, Chicago, Illinois 60637, USA and...
متن کاملAcceleration statistics in thermally driven superfluid turbulence.
New methods of flow visualization near absolute zero have opened the way to directly compare quantum turbulence (in superfluid helium) to classical turbulence (in ordinary fluids such as air or water) and explore analogies and differences. We present results of numerical simulations in which we examine the statistics of the superfluid acceleration in thermal counterflow. We find that, unlike th...
متن کاملLagrangian and Eulerian velocity structure functions in hydrodynamic turbulence.
The Lagrangian and Eulerian transverse velocity structure functions of fully developed fluid turbulence are found based on the inviscid Navier-Stokes equation. The structure functions are shown to obey the scaling relations S(n)(L)(tau) proportional to tau(xi(n)) and S(n)(E)(l) proportional to l(zeta(n)) inside the inertial range. The scaling exponents zeta(n) and xi(n) are calculated analytica...
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: Physical Review B
سال: 2021
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.103.144506