Browsing Auburn Theses and Dissertations by Author "Raghav, Vrishank"

Now showing items 1-15 of 15

Development of Metal 3D-Printed Helium-Filled Soap Bubble Nozzles

Swiney, Paul (2020-11-20)

Particle Image Velocimetry (PIV) is a useful flow visualization technique to obtain instantaneous velocity measurements of a fluid. The use of traditional tracer particles for PIV measurements is limited to small field of ...

An Experimental and Theoretical Investigation of Rotating Detonation Rocket Engine Wave Dynamics

Goldman, Ari (2026-04-30) ETD File Embargoed

Rotating detonation rocket engines (RDREs) have combustion chamber geometries that are inherently susceptible to tangential combustion instabilities. Low-amplitude pressure oscillations in the combustion chamber couple ...

An Experimental Investigation into the Wildland Fire Burning Characteristics of Loblolly Pine Straw

Stubbs, Daniel (2021-07-19)

Wildland fires present a threat to both the environment and to homes and businesses in the wildland urban interface. Understanding the behavior of wildland fires is crucial for developing informed risk management techniques, ...

An experimental investigation of crater formation physics during plume-surface interactions using non-intrusive measurement techniques

Stubbs, Daniel (2024-07-17)

In this dissertation, a stereo-photogrammetry technique for obtaining non-intrusive, full-domain measurements of Plume-Surface Interaction (PSI) crater evolution was developed. Using this technique, crater formation was ...

Influence of pulsatility and inlet velocity profiles on tracheal airflow characteristics

Tiwari, Bipin (2022-07-20)

Patient-specific simulation is a powerful and emerging tool for studying human airway physiological and pathological characteristics. Decision-based systems for clinicians based on the patient airflow characteristics play ...

Influence of rotational accelerations on the transient lift generation and leading-edge vortex dynamics

Gururaj, Abbishek (2024-12-10)

This dissertation aims to experimentally investigate the influence of rotational accelerations on the transient lift generation and flow field dynamics over a rotating wing. The research focuses on three specific objectives: ...

Investigation and Mitigation of Vortex Induced Vibration Using a Cyber Physical System

Nix, John Jr (2023-08-04)

The Cyber Physical Aeromechanic System (CPAS) is a test bed for fluid-structure interaction studies. The CPAS is a 2nd-order state space system and tests three dynamic systems: a pendulum, vortex-induced vibration (VIV) ...

Investigation of Aeroacoustic Effects of Trailing-Edge Modifications to Blades of a Coaxial Counter-rotating Rotor

Munz, Karlyle (2020-11-17)

Noise generated by the rotor blades of modern UAVs pose significant limitations to the widespread adoption of UAVs in the future. To mitigate noise production, rotor blades with a serrated trailing-edge have been used to ...

A Neural Network-Based Modeling and Prediction of Crater Formation and Evolution in Plume-Surface Interaction

Satyal, Srijan (2026-04-13)

Retro-propulsive landings on extraterrestrial surfaces pose significant risks due to the interaction between the supersonic plume from rocket nozzles and the ground. The plume–surface interaction (PSI) releases dust and ...

A Numerical Analysis of Heterogeneous and Homogeneous Truck Platoon Aerodynamic Drag Reduction

Siemon, Michael (2018-07-31)

The purpose of this study was to provide an analysis of the aerodynamic phenomena involved with the platooning of multiple truck-trailer configurations. With fuel usage being a large factor in high operational costs of ...

On the development of a Neural Radiance Field technique for tomographic reconstruction applied to flow diagnostics

Kelly, Dustin (2024-04-25)

In this work, a novel neural implicit representation tomography algorithm based on Neural Radiance Fields is developed and demonstrated for 3D flow diagnostics. Neural Radiance Fields (NeRF) originate from the computer ...

On the Development of a Single Camera 3D Particle Tracking Algorithm to Study the Flow Field over a Rotating Wing

Moaven, Mahyar (2024-12-16)

Previous studies on unsteady flow fields over rotating wings have revealed distinct behaviors compared to translating wings, with rotating wings exhibiting strong three-dimensional effects and significant cycle-to-cycle ...

Propeller slipstream effects on wing aerodynamics at low Reynolds numbers

Ahmed, Luqman (2026-05-11) ETD File Embargoed

This dissertation investigates the effects of propeller slipstream on the aerodynamic performance of a downstream wing at low Reynolds numbers (70,000–130,000). The study addresses three objectives: quantifying aerodynamic ...

Study of aerodynamic interactions in counter-rotating coaxial rotors

Silwal, Lokesh (2023-12-06)

Counter-rotating coaxial rotors (CCR) are ubiquitous in emerging next-generation configurations, demonstrating enhanced performance metrics such as increased forward-flight speed, flight range, and payload capabilities ...

Study on the aerodynamic interactions of a coaxial rotor hovering in-ground effect

Moore, Zachary (2024-12-05)

Counter-rotating coaxial rotors (CCR) offer notable advantages over conventional single-rotor systems in flight speed, payload capacity, and maneuverability. As a result, CCR configurations are being considered for future ...