A5047868799- Fluid Dynamics and Heat Transfer
- Computational Fluid Dynamics and Aerodynamics
- Aerodynamics and Fluid Dynamics Research
- Fluid Dynamics and Turbulent Flows
- Fluid Dynamics Simulations and Interactions
- Wind and Air Flow Studies
- Icing and De-icing Technologies
- Particle Dynamics in Fluid Flows
- Infection Control and Ventilation
- Fluid Dynamics and Vibration Analysis
- Aerodynamics and Acoustics in Jet Flows
- Plasma and Flow Control in Aerodynamics
- Biomimetic flight and propulsion mechanisms
- Aerospace and Aviation Technology
- Combustion and Detonation Processes
- Aerospace Engineering and Energy Systems
- Gas Dynamics and Kinetic Theory
- Spacecraft and Cryogenic Technologies
- Aerosol Filtration and Electrostatic Precipitation
- Wind Energy Research and Development
- Cavitation Phenomena in Pumps
- Air Traffic Management and Optimization
- Heat Transfer and Optimization
- Ultrasound and Cavitation Phenomena
- Fluid Dynamics and Mixing
University of Central Florida
2018-2025
Florida College
2023-2024
Embry–Riddle Aeronautical University
2024
Indiana State University
2022
Pennsylvania State University
2010-2021
Applied Research Laboratory at the University of Hawai‘i
2011-2018
Applied Research (United States)
2005-2018
Applied Research Laboratory at Penn State
2015
Bechtel (United States)
2012-2013
The COVID-19 pandemic has driven numerous studies of airborne-driven transmission risk primarily through two methods: Wells-Riley and computational fluid dynamics (CFD) models. This effort provides a detailed comparison the methods for classroom scenario with masked habitants various ventilation conditions. results concluded that (1) model agrees CFD without forced (6% error); (2) cases, there was significantly higher error (29% (3) moderate filtration is shown to reduce infection...
Recent studies have indicated that COVID-19 is an airborne disease, which has driven conservative social distancing and widescale usage of face coverings. Airborne virus transmission occurs through droplets formed during respiratory events (breathing, speaking, coughing, sneezing) associated with the airflow a network nasal buccal passages. The interacts saliva/mucus films where are dispersed, creating route to transmit SARS-CoV-2. Here, we present series numerical simulations investigate...
The disability, mortality and costs due to ionizing radiation (IR)-induced osteoporotic bone fractures are substantial no effective therapy exists. Ionizing increases cellular oxidative damage, causing an imbalance in turnover that is primarily driven via heightened activity of the bone-resorbing osteoclast. We demonstrate rats exposed sublethal levels IR develop fragile, bone. At reactive surface sites, cerium ions have ability easily undergo redox cycling: drastically adjusting their...
In this work, the interaction between a ventilated supercavity and jet are examined using computational fluid dynamics (CFD). CFD results compare favorably to experimental data describing bulk cavity behavior. These validated models used develop number of novel insights into physical characteristics interaction. interactions described by: (1) ventilation gas appears dominate attached shear layer, (2) cause additional leakage by transitioning from recirculating flow an axial flow, (3) creates...
A computational study of the wave phenomenon and probable cavitation that occurs when a droplet interacts with shock is presented. volume-of-fluid method without model activated employed. The no used to clarify droplet's internal field. benchmarked using experimental data 22 mm water column impacted by at Mach 2.4. Good agreement between results for two-dimensional (2D) circular demonstrated. simplified 2D, square also considered in order highlight effects interface curvature on waves....
To assess their application to rotorcraft, the two-dimensional aerodynamics of deployable Gurney flaps, referred as miniature trailing-edge effectors, are explored using computational fluid dynamics. These devices have a height only few percent airfoil chord and deploy normal surface near trailing edge. Their small size, low inertia, added mass make them well suited for deployment in high-frequency applications such those needed rotorcraft. A combination wind-tunnel measurements airfoils...
The influence of a neutral atmospheric boundary layer on one-way coupled dynamic interface simulation is evaluated. effort performed within the context time-accurate large-eddy simulations Simple Frigate Shape 2, which immersed into turbulence-resolving inflow that emulates dynamics realistic layer. Several baseline cases are used to represent traditional approach modeling incoming wind as constant, uniform inflow. When comparing layer-resolving simulations, it observed velocities in ship...
Horizontal drilling with successful multistage hydraulic fracture treatments is the most widely applied and effective method to enable economic development of hydrocarbon-bearing shale reservoirs. Once networks are established, they must be propped open maintain pathways for fluid migration through production phase. As such, design application efficient proppant treatment considered a key step successfully develop targeted resource. Unfortunately, available literature simulation tools...
Radiotherapy is a critical component of cancer care but can cause osteoporosis and pathological insufficiency fractures in surrounding otherwise healthy bone. Presently, no effective countermeasure exists, ionizing radiation-induced bone damage continues to be substantial source pain morbidity. The purpose this study was investigate small molecule aminopropyl carbazole named P7C3 as novel radioprotective strategy. Our studies revealed that repressed radiation (IR)-induced osteoclastic...
The present paper investigates droplet and aerosol emission from the human respiratory function by numerical experimental methods, which is analyzed at worst-case scenario, a violent sneeze without face covering. research findings develop understanding of airborne disease transmission relevant to COVID-19, its recent variants, other pathogens. A studied using multiphase Computational Fluid Dynamics (CFD) model detached eddy simulation coupled droplets that break up, evaporate, disperse....
The influence of diet on the development osteoporosis is significant and not fully understood. This study investigated effect diets varying lipid profiles ω-3, ω-6 ω-9 composition structural mechanical properties bone. hypothesis studied was that a high in saturated fat would induce produce an overall increased detrimental bony response when compared with unsaturated ω-6, or ω-9. Male C57BL/6J mice were fed either control diet, 50:50 mix (saturated:unsaturated) (HFD50:50), (HSF)...
The deformation and breakup of water droplets impacted by a shock wave has been largely attributed to surface mechanisms. This study investigates the possibility cavitation-induced droplet breakup. Shock waves Mach 4 are used in this impact groups droplets, both degassed group non-degassed droplets. Distilled on order 1-3 mm diameter introduced into tube. High speed images plots explore existence cavitation as well how they deform comparatively.
This effort investigates advancing cavitation modeling relevant to computational fluid dynamics (CFD) through two strategies. The first aims reformulate the models and second explores adding liquid–vapor slippage effects. aspect of paper revisits model formulations with respect Rayleigh–Plesset equation (RPE). present approach reformulates using analytic solutions RPE. benefit this reformulation is displayed by maintaining sensitivities similar RPE, whereas standard fail these tests. In...