Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Wildenschild, D. Subject Multiscale modeling

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:

Wildenschild. Further I’d like to thank Dr. Anthony Costa, Dr. Justin Webster and Dr. Duncan McGregor for
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:

Illustration of D superimposed in D∗ for horizontal flow. . . . . . . . . . . . . . . . . . 19 2.10 (a
Multiscale modeling of two-phase flows in microarchitectures with microfeatures

Creator:

Truszkowska, Agnieszka

Abstract:

Two-phase flows in microtechnology based devices are purposefully present in multiphase reactors, phase separators, analytical devices and others. Two-phase flows can also be an undesirable side effect occurring during operation due to phase transitions or, more commonly, introduction of surrounding air through equipment gaps and with process feed. In both...

Resource Type:

Dissertation

Full Text:

)serpentine design, c)T-channel and d)T-junction. 3 1.3 Microscale device with cylindrical pillars as