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Full-Text Articles in Engineering
Testing The Effectiveness Of Various Fabrics For Use In Protective Face Coverings, Isaac Daley
Testing The Effectiveness Of Various Fabrics For Use In Protective Face Coverings, Isaac Daley
Williams Honors College, Honors Research Projects
Facemask requirements have been heavily implemented as a result of the COVID-19 pandemic. The purpose of this study was to test various fabrics that could be used in face coverings and determine which materials are best for reducing virus transmission rates. Of the seven fabrics tested, five were conventional home-use fabrics and the other two were surfaces modified with hydrophobic organosilanes. Wettability and droplet adherence tests were performed on each material. The materials that performed the best were decyltrichlorosilane (DTS) modified cotton, perfluorotrichlorosilane (FTS) modified cotton, and polyester. Contact angles for water droplets on these fabrics were 106°, 93°, and …
The Effects And Motion Of An Air-Filled Cylinder Being Submerged In Water In The Axial Direction, Ethan Davis
The Effects And Motion Of An Air-Filled Cylinder Being Submerged In Water In The Axial Direction, Ethan Davis
Williams Honors College, Honors Research Projects
Submarines operate on the basis of a difference in relative densities between of vessel and the surrounding fluid. This principle is based on the force balance that exists between the total buoyancy force and the force due to gravity. Previous work focuses on the neutral buoyancy depths and velocities of object that once submerged, their buoyancy force is a constant along with the force due to gravity. This work aims to better understand how the compression of air at various depths below the surface of the water contribute to the neutral buoyancy depth, velocity of the object as it rises, …
Relating Modified Ergun's Equation To Hindered Settling Correlations, Ryan Zahniser
Relating Modified Ergun's Equation To Hindered Settling Correlations, Ryan Zahniser
Williams Honors College, Honors Research Projects
Correlations were developed between the Modified Ergun’s and Hindered settling correlations under the condition of dense packing of particles in the bed. As the porosity of the slurry increases, so does the interference between particles in the solution which mimics the behavior of a packed or densely concentrated fluidized bed. The similarity between the two sets of conditions was modeled using mathematical equations to calculate settling velocities and pressure drops by means of the Hindered Settling correlations and Modified Ergun’s equation at porosities ranging from 0.4242 to 0.89. The results showed that a porosity of 0.52 and 0.009 ft particle …
Simulation Of Water Loading In Filter Medium, Anthony Mole
Simulation Of Water Loading In Filter Medium, Anthony Mole
Williams Honors College, Honors Research Projects
This research will model fluid flow through a filter plugged with water droplets using FlexPDE software. After simulations are run at various initial conditions, curves will be developed to correlate the permeability of the filter to variables like water droplet distribution and size.