Tesi etd-08242020-135536 |
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Tipo di tesi
Tesi di laurea magistrale
Autore
LUNGHI, GIANMARCO
URN
etd-08242020-135536
Titolo
An inquiry on the nature of discrepancies between numerical and experimental results in a flow around a 5:1 rectangular cylinder
Dipartimento
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA AEROSPAZIALE
Relatori
relatore Dott. Mariotti, Alessandro
relatore Prof.ssa Salvetti, Maria Vittoria
relatore Ing. Pasqualetto, Elena
relatore Prof.ssa Salvetti, Maria Vittoria
relatore Ing. Pasqualetto, Elena
Parole chiave
- 5:1 rectangular cylinder
- BARC aerodynamics
- CFD
- experiments
- wind tunnel
Data inizio appello
29/09/2020
Consultabilità
Non consultabile
Data di rilascio
29/09/2090
Riassunto
This work consists in a numerical and experimental investigation on the BARC benchmark, dealing with the flow around a 5:1 rectangular cylinder. The effects of varying spanwise grid resolution, SGS dissipation and, finally, upstream edge rounding have been evaluated. In particular, I highlight the effect produced on flow features, on characteristic frequencies and spanwise correlations, in order to emphasize the causes of the discrepancy of various results. Numerical simulations have been performed by means of LES simulations, experimental investigation have been carried out by means of pressure and velocity measurements in the wind tunnel.
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