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Experimental Study of Liquid Squeeze-flow as it Relates to Human Voice Production
squeeze flow, thin film, voice, airway surface liquid
Approximately 7.5 million people suffer from voice disorders in the United States. Previous studies indicate that the quality of the fluid layer that coats the vocal folds appears to be different for people with voice disorders than for people...
ETD

Novel perturbation approach for the structure factor of the attractive hard-core Yukawa fluid
A novel perturbation approach for the structure factor S(k) of the Lennard-Jones-type Yukawa fluid with z=1.8 is presented. An approach is based on a new reference system, that is, the short-range Yukawa model with z0 > z=1.8. By choosing for the...
Institutional Repository

Spin-up in a tank induced by a rotating bluff body
Spin-up of a turbulent flow in a cylindrical tank caused by a rotating bluff body has been investigated using flow visualization, fluid velocity measurements, and hydrodynamic torque measurements. During the spin-up process three distinct temporal...
Institutional Repository

The mean spherical approximation for a dipolar Yukawa fluid
The dipolar hard sphere fluid (DHSF) is a useful model of a polar fluid. However, the DHSF lacks a vapor–liquid transition due to the formation of chain-like structures. Such chains are not characteristic of real polar fluids. A more realistic...
Institutional Repository

Transient molecular dynamics simulations of viscosity for simple fluids
A transient molecular dynamics (TMD) method has been developed for simulation of fluid viscosity. In this method a sinusoidal velocity profile is instantaneously overlaid onto equilibrated molecular velocities, and the subsequent decay of that...
Institutional Repository

Hard-sphere radial distribution function again
A theoretically based closed-form analytical equation for the radial distribution function, g(r), of a fluid of hard spheres is presented and used to obtain an accurate analytic representation. The method makes use of an analytic expression for the...
Institutional Repository

Grand canonical Monte Carlo and modified singlet integral equations for the density profile of a Yukawa fluid near a planar wall
Results for the density profile for Yukawa molecules near a hard wall and an exponential attractive wall are presented for Grand Canonical Monte Carlo (GCMC) simulations, for the singlet hypernetted chain (HNC) integral equation and for a modified...
Institutional Repository

The effect of externally applied oscillating electric fields on the l=1 and l=2 diocotron modes in non-neutral plasmas
A high-frequency oscillating electric field can change the properties of diocotron modes in non-neutral plasmas. The effect depends crucially on the azimuthal mode number, m, of the applied field. For m=0, plus or minus 1 there is no effect, and...
Institutional Repository

Platinum Group Element Mineralization in "Ballrooms" of the J-M Reef of the Stillwater Complex, Montana
Platinum, Palladium, Stillwater Complex, Sulfide, alteration, J-M Reef,
The J-M Reef of the Stillwater Complex, Montana (a large layered mafic intrusion), is one of the highest grade platinum group element (PGE) deposits known in the world, producing primarily palladium and platinum in a 3.4:1 ratio....
ETD

Dynamics of a Partially Fluid-Filled Sphere
We introduce a study on the slosh dynamics of a partially filled elastic sphere. Currently the physical design of fluid-filled containers utilizes clever construction and machinery to mitigate sloshing motions. There are numerous cases that have...
Institutional Repository

Determination of protein profile and presence of antibodies in llama seminal plasma (Llama glama) / by Francisco Flores Lopes.
llama productivity; llamas; reproduction; Bolivia
At an international level, Bolivia possesses the largest population of llamas followed by Peru. This makes our country a power, in this renewable resource, to create and generate economic development primarily for the quality of llama meat which...
Benson Institute

Experimental and numerical investigation of turbulent flow induced pipe vibration in fully developed flow
Flow-induced pipe vibration caused by fully developed pipe flow has been observed but not fully investigated when turbulent flow prevails. This article presents experimental results that indicate a strong correlation between the volume flow rate...
Institutional Repository

MPSA effects on copper electrodeposition investigated by molecular dynamics simulations
In superconformal filling of copper-chip interconnects, organic additives are used to fill high-aspect-ratio trenches or vias from the bottom up. In this study we report on the development of intermolecular potentials and use molecular dynamics...
Institutional Repository

The analysis of a model for wave motion in a liquid semiconductor: boundary interaction and variable conductivity
The theory of conducting fluids in relative motion with small conductivity is studied with a model including the Maxwell displacement current. The model is linearized, and the interaction of waves with a plane boundary in three space is studied...
Institutional Repository

How Cellular movement determines the collective force generated by the Dictyostelium discoideum slug
How the collective motion of cells in a biological tissue originates in the behavior of a collection of individuals, each of which responds to the chemical and mechanical signals it receives from neighbors, is still poorly understood. Here we study...
Institutional Repository

Parametric Optimization Design System for a Fluid Domain Assembly
parametric, associative, modeling, airfoil, axial compressor, optimization, fluid, multi-disciplinary optimization, MDO, analysis, jet, turbine, engine, computational fluid dynamics, CFD, Knowledge-centric, CAD-centric, DB-centric, finite element...
Automated solid modeling, integrated with computational fluid dynamics (CFD) and optimization of a 3D jet turbine engine has never been accomplished. This is due mainly to the computational power required, and the lack of associative parametric...
ETD

A fluid in contact with a semipermeable surface: Second-order integral equation approach
An integral equation approach for a binary hard-sphere mixture interacting with a planar semipermeable wall (membrane) is formulated by using the second-order nonuniform or pair Ornstein–Zernike equation as well as the usual singlet...
Institutional Repository

Thermally Developing Electro-Osmotic Convection in Circular Microchannels
electro-osmosis, electro-osmotic, heat transfer, numerical heat transfer, convection, thermally developing, microchannel, microtube, slug flow
Thermally developing, electro-osmotically generated flow has been analyzed for a circular microtube under imposed constant wall temperature (CWT) and constant wall heat flux (CHF) boundary conditions. Established by a voltage potential gradient...
ETD

Analysis of Induced Vibrations in Fully-Developed Turbulent Pipe Flow Using a Coupled LES and FEA Approach
les, turbulence, pipe, flow, turbulent, vibration
Turbulent flow induced pipe vibration is a phenomenon that has been observed but not fully characterized. This thesis presents research involving numerical simulations that have been used to characterize pipe vibration resulting from fully...
ETD

Testing Direct Simulation Monte Carlo Methods Against the Fluid Equations in the Inductively Coupled Plasma Mass Spectrometer
DSMC, computational methods, Navier-Stokes, heat equation, boundary layers, ICP-MS, inductively coupled plasma mass-spectrometer, fluid equations, FENIX
A Direct Simulation Monte Carlo fluid dynamics code named FENIX has been employed to study gas flow-through properties of the inductively coupled plasma mass spectrometer (ICP-MS). Simulation data have been tested against the Navier-Stokes and heat...
ETD

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