Now showing items 31-40 of 112
Scalable and Predictive Model Order Reduction for Reacting Flow Systems
(2023)
Accurate, efficient prediction of reacting flow systems is challenging due to stiff reaction kinetics, significant disparity in spatiotemporal scales, and multi-physics interactions. Predictive tools for modeling these ...
Shock Capturing for High-Order Computational Fluid Dynamics
(2023)
This thesis contributes to shock-capturing and high-order computational fluid dynamics methods. We are concerned with convection-dominated equations, working towards Navier-Stokes solvers capable of handling large solution ...
Model-free Learning and Interaction-aware Control for Safe Autonomous Driving
(2023)
Autonomous vehicles technologies have greatly advanced in recent years, with promises of various benefits, including improved safety, efficient transportation, increased accessibility, etc. However, ensuring safety is one ...
Mapping and Real-Time Navigation With Application to Small UAS Urgent Landing
(2021)
Small Unmanned Aircraft Systems (sUAS) operating in low-altitude airspace require flight near buildings and over people. Robust urgent landing capabilities including landing site selection are needed. However, conventional ...
Performance of a Rotating Magnetic Field Thruster
(2022)
The rotating magnetic field (RMF) thruster is a type of inductive pulsed propulsion device theoretically suited for high power operation. It utilizes a rotating magnetic field to produce an azimuthal current in the presence ...
Adaptive Control of Self-Excited Systems with Application to a Gas Turbine Combustor
(2023)
A self-excited system (SES) has the property that constant inputs produce oscillatory outputs. SES arise in biochemical systems, aeroelasticity, and combustion. In particular, gas-turbine combustors are SES since a constant ...
Robust and Scalable Projection-based Reduced-order Models for Simulations of Reacting Flows
(2023)
This thesis investigates the development and application of projection-based reduced-order models (PROMs) to mitigate the exorbitant computational cost of high-fidelity numerical simulations of complex systems. Traditionally, ...
Goal-Oriented Mesh Adaptation for High-Fidelity Aeroelastic Simulations
(2022)
This work demonstrates a solution-adaptive approach for solving fluid-structure interaction problems using high-fidelity numerical methods along with a detailed analysis of mesh-motion errors. A high-order partitioned ...
Pulsed Mid-Infrared Upconversion Imaging in Rotating Detonation Combustors
(2020)
This work examines the application of pulsed mid-IR UpConversion Imaging (UCI) to study processes in unsteady combustion environments. UCI is a method for mid-IR light detection that leverages a nonlinear optical process ...
Aerodynamic Shape Optimization and Modeling for Flows Including Transition to Turbulence Effects
(2020)
In airplane design, engineers aim to reduce drag as much as possible, while respecting aerodynamic, structural, and budgetary constraints, leading to reduced operational costs and greenhouse gas emissions. It is known that ...