• Media type: Text; E-Article
  • Title: Numerical simulations and measurements of a droplet size distribution in a turbulent vortex street
  • Contributor: John, Volker [Author]; Bordás, Robert [Author]; Schmeyer, Ellen [Author]; Thévenin, Dominique [Author]
  • Published: Weierstrass Institute for Applied Analysis and Stochastics publication server, 2014
  • Language: English
  • DOI: https://doi.org/10.1127/0941-2948/2014/0570
  • Keywords: article ; two-phase turbulent vortex street -- disperse droplet population -- non-intrusive measurements -- population balance systmes -- direct discretizations
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  • Description: A turbulent vortex street in an air flow interacting with a disperse droplet population is investigated in a wind tunnel. Non-intrusive measurement techniques are used to obtain data for the air velocity and the droplet velocity. The process is modeled with a population balance system consisting of the incompressible Navier-Stokes equations and a population balance equation for the droplet size distribution. Numerical simulations are performed that rely on a variational multiscale method for turbulent flows, a direct discretization of the differential operator of the population balance equation, and a modern technique for the evaluation of the coalescence integrals. After having calibrated two unknown model parameters, a very good agreement of the experimental and numerical results can be observed.
  • Access State: Open Access
  • Rights information: Attribution (CC BY)