Tesi etd-01162015-192239 |
Link copiato negli appunti
Tipo di tesi
Tesi di laurea magistrale
Autore
VILLORESI, TOMMASO
URN
etd-01162015-192239
Titolo
Meshing guide-lines for high fidelity CFD: an industrial application
Dipartimento
INGEGNERIA DELL'ENERGIA, DEI SISTEMI, DEL TERRITORIO E DELLE COSTRUZIONI
Corso di studi
INGEGNERIA ENERGETICA
Relatori
relatore Prof. Ambrosini, Walter
relatore Prof. Forgione, Nicola
correlatore Ing. Komen, Ed
correlatore Dott. Shams, Afaque
relatore Prof. Forgione, Nicola
correlatore Ing. Komen, Ed
correlatore Dott. Shams, Afaque
Parole chiave
- CFD
- DNS
- Fluent
- fluidodinamica
- guideline
- LES
- Mesh
- nuclear
- OpenFoam
- RANS
- ROCOM
- Star-CCM
Data inizio appello
26/02/2015
Consultabilità
Completa
Riassunto
Are investigated characteristic dimensions of turbulent flows in order to define a meshing guideline for high fidelity CFD (DNS, LES).
For this purpose in the second chapter, are introduced fundaments of turbulent fields providing a general analysis of turbulent
flows and introducing parameters used for turbulent analysis. In the third chapter are reviewed numerical methods for turbulence modeling, with particular regard to those
applied in Chapter 5.
The mesh guide-line is proposed in chapter four: after a review on turbulence scales characterization, are investigated DNS databases of relevant industrial cases where turbulence plays an important role. An in-depth analysis is provided for high delity methods such as LES and DNS.
In the fifth chapter are applied knoweladges of previous chapters on a industrial case of Main Steam Line Break. Results of LES computation are validated thanks to the experimental data of ROCOM test 2.1.
For this purpose in the second chapter, are introduced fundaments of turbulent fields providing a general analysis of turbulent
flows and introducing parameters used for turbulent analysis. In the third chapter are reviewed numerical methods for turbulence modeling, with particular regard to those
applied in Chapter 5.
The mesh guide-line is proposed in chapter four: after a review on turbulence scales characterization, are investigated DNS databases of relevant industrial cases where turbulence plays an important role. An in-depth analysis is provided for high delity methods such as LES and DNS.
In the fifth chapter are applied knoweladges of previous chapters on a industrial case of Main Steam Line Break. Results of LES computation are validated thanks to the experimental data of ROCOM test 2.1.
File
| Nome file | Dimensione |
|---|---|
| 1_Introduction.pdf | 88.77 Kb |
| 2_Turbulence.pdf | 1.16 Mb |
| 3_Methods.pdf | 731.42 Kb |
| 4_Meshing.pdf | 2.09 Mb |
| 5_LES.pdf | 4.01 Mb |
| 6_conclusioni.pdf | 364.05 Kb |
| Appendici.pdf | 2.14 Mb |
| Bibliografia.pdf | 1.79 Mb |
| Figures_...ssary.pdf | 1.09 Mb |
| front.pdf | 52.47 Kb |
| Indice.pdf | 234.48 Kb |
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