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Updated: May 13, 2026

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
Published on: February 27, 2016
Real-space manifestations of bottlenecks in turbulence spectra
Uriel Frisch1, Samriddhi Sankar Ray, Ganapati Sahoo
1Laboratoire Lagrange, OCA, UNS, CNRS, BP 4229, 06304 Nice Cedex 4, France.
Abstract:
An energy-spectrum bottleneck, a bump in the turbulence spectrum between the inertial and dissipation ranges, is shown to occur in the nonturbulent, one-dimensional, hyperviscous Burgers equation and found to be the Fourier-space signature of oscillations in the real-space velocity, which are explained by boundary-layer-expansion techniques. Pseudospectral simulations are used to show that such oscillations occur in velocity correlation functions in one- and three-dimensional hyperviscous hydrodynamical equations that display genuine turbulence.
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