| Τύπος: |
Διάλεξη |
| Ημ/νία Έναρξης: |
26/6/2013 |
| Ημ/νία Λήξης: |
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| Ώρα Έναρξης: |
13:00 |
| Ώρα Λήξης: |
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| Ομιλητής: |
Δρ. Δημήτριος Παπαβασιλείου, School of Chemical, Biological and Materials Engineering, The University of Oklahoma |
| Τίτλος: |
Flow and Transport in Realistic Porous Media with Simulations |
| Περιγραφή: |
Dispersion in porous media is critical for understanding biological, industrial and environmental systems. In this work, accurate simulations of the flow in complicated, realistic porous media geometries are used in conjunction with Lagrangian particle tracking methods for the description of flow and nanoparticle transport in different physical situations.
Two cases will be discussed. First is the case of flow in porous scaffolds that are used in perfusion bioreactors for the growth of bone tissue. In that case, stem cells are seeded on the scaffold and then cultured for a period of two to three weeks. The flow-induced stresses that the seeded cells experience during the culture process are important for every aspect of the tissue growth process. A common distribution function has been found to work well for the prediction of the probability density function that the stresses follow. The second case to be discussed is the case of nanoparticle transport in dense porous media. The simulations, in conjunction with experimental results, help to understand the fundamental propagation mechanisms that govern the motion of the particles. In addition, up-scaling of the mesoscale results obtained with the lattice Boltzmann method leads to macroscopic properties that can be used for practical applicability in commercial reservoir simulations. |
| Χώρος: |
Αίθουσα Συνεδριάσεων |
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