ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-04092015-110512


Tipo di tesi
Tesi di laurea magistrale
Autore
INNOCENTI, ALESSIO
URN
etd-04092015-110512
Titolo
Implementation and appraisal of a stochastic model for particle tracking in turbulent flow
Dipartimento
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA AEROSPAZIALE
Relatori
relatore Prof. Salvetti, Maria Vittoria
relatore Prof. Chibbaro, Sergio
relatore Prof. Marchioli, Cristian
Parole chiave
  • stochastic model
  • turbulent flow
  • large eddy simulation
  • particle tracking
Data inizio appello
28/04/2015
Consultabilità
Completa
Riassunto
The purpose of this thesis is to analyse the results of numerical computations of polydispersed turbulent two-phase flows using a LES/VFDF approach. In this approach, the numerical solution is obtained by resorting to a hybrid method, where the fluid properties are computed by solving filtered-field (LES) equations whereas the local instantaneous properties of the particles are determined by solving stochastic differential equations (SDEs). The fundamentals of the general formalism are recalled in the first part, while the second part is focused on the work of implementation of the stochastic module and on the tests of consistency carried out to validate the code. Finally some results are shown for particle preferential concentration in a turbulent channel.
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