Publications

Publications

Application of CFD Model for Inlet Flow Region of 17x17 Fuel Assembly

This study uses a Computational Fluid Dynamics (CFD) model to investigate the flow redistribution and velocity profiles within a Westinghouse 17×17 PWR fuel assembly. The research focuses on how the fuel assembly's structure, including the debris filter bottom nozzle and grids, affects the high-velocity jet flow from the lower core plate, aiming to understand the potential for rod vibration and fretting-wear damage.

LS-OPT Users Manual

A Design Optimization and Probabilistic Analysis Tool for the Engineering Analyst

Development of Machine-Augmented Composites for Infrastructure Applications

The paper details the development of MACterials, focusing on how embedded machine geometry can be parametrically varied to achieve custom material properties. It highlights the use of analytical and finite-element models as key design tools for optimizing machine shapes for specific applications like vibration damping.

Drag Coefficient of a Spherical Particle Attached on the Flat Surface

This paper employs Computational Fluid Dynamics to numerically determine the drag coefficient of a spherical particle adhering to a flat surface, broadening the scope of its applicability beyond low Reynolds number flows. The study rigorously investigates the use of a correction factor to reconcile analytical solutions with a wider range of fluid flow conditions, which is essential for understanding particle behavior on surfaces.

Discrete Time Vector Finite Element Methods for Solving Maxwell's Equations on 3D Unstructured Grids

Daniel Arthur White

This dissertation develops and analyzes the Discrete Time Vector Finite Element Method, a provably stable and conserving method for solving Maxwell's equations on 3D unstructured grids. The approach uses complementary covariant and contravariant vector finite elements to accurately model the electric and magnetic fields, respectively. The method was implemented in the VFEM3D software and successfully validated against analytical solutions for various electromagnetic problems.