Related Experiment Video
Updated: May 4, 2026

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
Published on: July 19, 2016
Generalized vortex model for the inverse cascade of two-dimensional turbulence
1Institute for Theoretical Physics I, Ruhr-University Bochum, Universitätsstrasse 150, D-44801 Bochum, Germany.
Abstract:
We generalize Kirchhoff's point vortex model of two-dimensional fluid motion to a rotor model which exhibits an inverse cascade by the formation of rotor clusters. A rotor is composed of two vortices with like-signed circulations glued together by an overdamped spring. The model is motivated by a treatment of the vorticity equation representing the vorticity field as a superposition of vortices with elliptic Gaussian shapes of variable widths, augmented by a suitable forcing mechanism. The rotor model opens up the way to discuss the energy transport in the inverse cascade on the basis of dynamical systems theory.
Related Concept Videos
Bernoulli's Equation for Flow Along a Streamline
Irrotational Flow
Bernoulli's Equation for Flow Normal to a Streamline
The pressure difference depends on the fluid's velocity and radius of curvature. The pressure variation is minimal in flows with nearly straight streamlines. However, the...
Couette Flow
Typical Model Studies
Turbulent Flow

