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EnglishThe problem of fluid flow in porous media is of paramount importance in the process, oil and metallurgical industries, since it is involved in the extraction of minerals and oil, in aquifer dynamics, as well as chemical reactions carried out in fixed bed catalytic reactors. Its CFD simulation is particularly interesting, as it offers the possibility of reducing the extent of costly experimental investigations, but presents a number of technical challenges. One of the main issues is the generation of a geometrical model that realistically represents the porous medium/particle packing. Its derivation from experiments (i.e. micro-computer tomography) is complicated and packing codes are often limited to simple convex (mainly spherical) objects. In this work a computational tool developed in computer graphics, and integrated with the Bullet Physic Library, is used to generate realistic packings of polydisperse catalytic spheres and trilobes. The geometrical model is then meshed with SnappyHexMesh and then simulated with Ansys Fluent. Results show excellent agreement with experiments, demonstrating the great potentiality of the approach.
PORE-SCALE SIMULATION OF FLUID FLOW IN PACKED-BED REACTORS VIA RIGID-BODY SIMULATIONS AND CFD / Gianluca BOCCARDO; Luigi DEL PLATO; Daniele MARCHISIO; Frederic AUGIER; Yacine HAROUN; Daniel FERRE; Matteo ICARDI. - ELETTRONICO. - (2014). ((Intervento presentato al convegno 10th International Conference on Computational Fluid Dynamics In the Oil & Gas, Metallurgical and Process Industries tenutosi a Trondheim nel June 17-19, 2014.
| Titolo: | PORE-SCALE SIMULATION OF FLUID FLOW IN PACKED-BED REACTORS VIA RIGID-BODY SIMULATIONS AND CFD |
| Autori: | |
| Data di pubblicazione: | 2014 |
| Abstract: | The problem of fluid flow in porous media is of paramount importance in the process, oil and meta...llurgical industries, since it is involved in the extraction of minerals and oil, in aquifer dynamics, as well as chemical reactions carried out in fixed bed catalytic reactors. Its CFD simulation is particularly interesting, as it offers the possibility of reducing the extent of costly experimental investigations, but presents a number of technical challenges. One of the main issues is the generation of a geometrical model that realistically represents the porous medium/particle packing. Its derivation from experiments (i.e. micro-computer tomography) is complicated and packing codes are often limited to simple convex (mainly spherical) objects. In this work a computational tool developed in computer graphics, and integrated with the Bullet Physic Library, is used to generate realistic packings of polydisperse catalytic spheres and trilobes. The geometrical model is then meshed with SnappyHexMesh and then simulated with Ansys Fluent. Results show excellent agreement with experiments, demonstrating the great potentiality of the approach. |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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| 2014_CFD2014_Boccardo.pdf | 1. Preprint / Submitted Version | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2551737
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