CLUSTERING OF LAGRANGIAN PARTICLES IN 2D TURBULENCE

Authors

  • C. Martinovich 1Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física. Buenos Aires, Argentina
  • I. Zalduendo 1Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física. Buenos Aires, Argentina
  • P. Cobelli 1Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física. Buenos Aires, Argentina 2CONICET - Universidad de Buenos Aires, Instituto de Física de Buenos Aires (IFIBA). Buenos Aires, Argentina

Abstract

In this paper we design and construct an experiment to generate and study 2D turbulence. We calculate velocity and
vorticity fields, the energy spectrum and Bondarenko’s parameter for the system both in decay and onset; those values
result in αD = (−0.400±0.012) s−1 and αE = (0.404±0.005) s−1, respectively. Additionally, we study the distribution of particles in the flux through the use of Voronoi tesselations.

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Published

2023-12-28

Issue

Vol. 34 No. 4 (2023): Anales AFA

Section

Fluids