Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Costa Monteiro, Carlos Committee Member Higdon, Robert

Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science

Creator:

Costa, Timothy B.

Abstract:

In this work we consider two multiscale applications with tremendous computational complexity at the lower scale. First, we examine a model for charge transport in semicon- ductor structures with heterojunction interfaces. Due to the complex physical phenomena at the interface, the model at the design scale is unable to adequately...

Resource Type:

Dissertation

Full Text:

AN ABSTRACT OF THE THESIS OF Timothy B. Costa for the degree
Modeling Flow and Transport at Pore Scale with Obstructions

Creator:

Umhoefer, Joseph G.

Abstract:

In this thesis we study mathematical and computational models for phenomena of flow and transport in porous media in the presence of changing pore scale geometries. The differential equations for the flow and transport models at Darcy scale involve the coefficients of permeability, porosity, and tortuosity which depend on the...

Resource Type:

Dissertation

Full Text:

constraints and additional localization functions. The second method we propose is a Markov Chain Monte Carlo
Multiphase Flow and Transport in Porous Media with Phase Transition at Multiple Scales: Modeling, Numerical Analysis, and Simulation

Creator:

Shin, Choah

Abstract:

In this dissertation we consider two application specific flow and transport models in porous media at multiple scales: 1) methane gas transport models for hydrate formation and dissociation in the subsurface under two-phase conditions, and 2) coupled flow and biomass-nutrient model for biofilm growth in complex geometries with biofilm, and...

Resource Type:

Dissertation

Full Text:

to the surface. Then we perform the Monte Carlo simulations and construct the probability