Statistics of particle dispersion in direct numerical simulations of wall-bounded turbulence: Results of an international collaborative benchmark test

  • Marchioli C
  • Soldati A
  • Kuerten J
 et al. 
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Abstract

In this paper the results of an international collaborative test case relative to the production of a direct numerical simulation and Lagrangian particle tracking database for turbulent particle dispersion in channel flow at low Reynolds number are presented. The objective of this test case is to establish a homogeneous source of data relevant to the general problem of particle dispersion in wall-bounded turbulence. Different numerical approaches and computational codes have been used to simulate the particle-laden flow and calculations have been carried on long enough to achieve a statistically steady condition for particle distribution. In such stationary regime, a comprehensive database including both post-processed statistics and raw data for the fluid and for the particles has been obtained. The complete datasets can be downloaded from the web at http://cfd.cineca.it/cfd/repository/. In this paper the most relevant velocity statistics (for both phases) and particle distribution statistics are discussed and benchmarked by direct comparison between the different numerical predictions. © 2008 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Collaborative test case
  • Direct numerical simulation
  • Lagrangian particle tracking
  • Steady-state concentration database
  • Two-phase gas-solid flow

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Authors

  • alfredo soldatiUniversita degli Studi di Udine

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  • C. Marchioli

  • J. G.M. Kuerten

  • B. Arcen

  • A. Tanière

  • G. Goldensoph

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