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Filtering by: Committee Member Yang, Haori Creator Duenas, Alexander M.

Investigation of Drag Coefficient and Virtual Mass Coefficient on Rising Ellipsoidal Bubbles

Creator:

Dueñas, Alexander M.

Abstract:

Accurately describing drag and virtual mass forces in two-phase flows is crucial for high fidelity modeling of nuclear thermal hydraulic safety systems. This study compares existing drag coefficient correlations commonly used in computational fluid dynamics (CFD) applications for air bubbles to experimental data collected for ellipsoidal air bubbles of varying...

Resource Type:

Masters Thesis
Dynamical System Scaling of Fuel Performance During Reactivity Insertion Accidents

Creator:

Dueñas, Alexander M.

Abstract:

Fuel qualification timelines for new fuel technology under ideal conditions can take between 20-25 years to be fully qualified from initial concept to deployment as full fuel assemblies. To reduce the timeline and costs, new separate-effects test and integral-effects test experiments, advanced instrumentation, and advanced modeling and simulation tools are...

Resource Type:

Dissertation