TY - JOUR
T1 - Properties of velocity circulation in three-dimensional turbulence
AU - Cao, Nianzheng
AU - Chen, Shiyi
AU - Sreenivasan, Katepalli R.
PY - 1996
Y1 - 1996
N2 - Properties of velocity circulation in three-dimensional turbulence are studied using data from high-resolution direct numerical simulation of Navier-Stokes equations. The probability density function (PDF) of the circulation depends on the area of the closed contour for which circulation is calculated, but not on the shape of the contour. For contours lying within the inertial range, the PDF has a Gaussian core with conspicuous exponential tails, indicating that intermittency plays an important role in circulation statistics. The measured scaling exponents are anomalous and substantially smaller than those implied by Kolmogorov's phenomenology.
AB - Properties of velocity circulation in three-dimensional turbulence are studied using data from high-resolution direct numerical simulation of Navier-Stokes equations. The probability density function (PDF) of the circulation depends on the area of the closed contour for which circulation is calculated, but not on the shape of the contour. For contours lying within the inertial range, the PDF has a Gaussian core with conspicuous exponential tails, indicating that intermittency plays an important role in circulation statistics. The measured scaling exponents are anomalous and substantially smaller than those implied by Kolmogorov's phenomenology.
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U2 - 10.1103/PhysRevLett.76.616
DO - 10.1103/PhysRevLett.76.616
M3 - Article
AN - SCOPUS:0000444247
SN - 0031-9007
VL - 76
SP - 616
EP - 619
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
ER -