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Recent Articles in Fluid Dynamics
Validation Of Weak Form Thermal Analysis Algorithms Supporting Thermal Signature Generation, Elton Lewis Freeman 
University of Tennessee, Knoxville
Validation Of Weak Form Thermal Analysis Algorithms Supporting Thermal Signature Generation, Elton Lewis Freeman
Masters Theses
Extremization of a weak form for the continuum energy conservation principle differential equation naturally implements fluid convection and radiation as flux Robin boundary conditions associated with unsteady heat transfer. Combining a spatial semi-discretization via finite element trial space basis functions with time-accurate integration generates a totally node-based algebraic statement for computing. Closure for gray body radiation is a newly derived node-based radiosity formulation generating piecewise discontinuous solutions, while that for natural-forced-mixed convection heat transfer is extracted from the literature. Algorithm performance, mathematically predicted by asymptotic convergence theory, is subsequently validated with data obtained in 24 hour diurnal field experiments for ...
Particle Subgrid Scale Modeling In Large-Eddy Simulation Of Particle-Laden Turbulence, Matthew J. Cernick 
McMaster University
Particle Subgrid Scale Modeling In Large-Eddy Simulation Of Particle-Laden Turbulence, Matthew J. Cernick
Open Access Dissertations and Theses
This thesis is concerned with particle subgrid scale (SGS) modeling in large-eddy simulation (LES) of particle-laden turbulence. Although most particle-laden LES studies have neglected the effect of the subgrid scales on the particles, several particle SGS models have been proposed in the literature. In this research, the approximate deconvolution method (ADM), and the stochastic models of Fukagata et al. (2004), Shotorban and Mashayek (2006) and Berrouk et al. (2007) are analyzed. The particle SGS models are assessed by conducting both a priori and a posteriori tests of a periodic box of decaying, homogeneous and isotropic turbulence with an initial Reynolds ...
Non-Equilibrium Topographies: Surface Tension Driven Flows Reveal Polymer Properties At The Nanoscale, Joshua D. McGraw McMaster University
Non-Equilibrium Topographies: Surface Tension Driven Flows Reveal Polymer Properties At The Nanoscale, Joshua D. Mcgraw
Open Access Dissertations and Theses
The most important results in this thesis are those concerned with the levelling of a stepped film’s height profile. Films are prepared such that their height profiles are well described by a Heaviside step function and to a good approximation, they are invariant in one dimension. The temporal dependence of the levelling gives rheological information about the molecules making up the stepped films. For the range of heights that is much larger that the typical size of molecules making up the film, we use classical hydrodynamics to model the flows in these stepped films. Having measured the temporal and ...
Computational Investigation Of Steady Navier-Stokes Flows Past A Circular Obstacle In Two--Dimensional Unbounded Domain, Carl Fredrik Jonathan Gustafsson McMaster University
Computational Investigation Of Steady Navier-Stokes Flows Past A Circular Obstacle In Two--Dimensional Unbounded Domain, Carl Fredrik Jonathan Gustafsson
Open Access Dissertations and Theses
This thesis is a numerical investigation of two-dimensional steady flows past a circular obstacle. In the fluid dynamics research there are few computational results concerning the structure of the steady wake flows at Reynolds numbers larger than 100, and the state-of-the-art results go back to the work of Fornberg (1980) Fornberg (1985). The radial velocity component approaches its asymptotic value relatively slowly if the solution is ``physically reasonable''. This presents a difficulty when using the standard approach such as domain truncation. To get around this problem, in the present research we will develop a spectral technique for the solution of ...
Morphology-Properties Studies In Laser Synthesized Nanostructured Materials, Nozomi Shirato University of Tennessee, Knoxville
Morphology-Properties Studies In Laser Synthesized Nanostructured Materials, Nozomi Shirato
Doctoral Dissertations
Synthesis of well-defined nanostructures by pulsed laser melting is an interesting subject from both a funda- mental and technological point of view. In this thesis, the synthesis and functional properties of potentially useful materials were studied, such as tin dioxide nanostructured arrays, which have potential applications in hydrogen gas sensing, and ferromagnetic Co nanowire and nanomagnets, which are fundamentally im- portant towards understanding magnetism in the nanoscale. First, the formation of 1D periodic tin dioxide nanoarrays was investigated with the goal of forming nanowires for hydrogen sensing. Experimental obser- vations combined with theoretical modeling successfully explained the mechanisms of structure ...
Polymer Droplets Levelling On Thin Films Of Identical Polymer, Sara L. Cormier McMaster University
Polymer Droplets Levelling On Thin Films Of Identical Polymer, Sara L. Cormier
Open Access Dissertations and Theses
This thesis describes the experimental results of liquid polymer droplets levelling on thin films of identical polymer liquid. Through varying the thickness of the underlying polymer film relative to the size of the droplet height, we have observed a crossover in the dynamics between droplets spreading on very thin films to droplets levelling on films thicker than the droplet itself. In the thin film regime, the underlying film behaves as a pre-existing precursor film and the droplet spreads according to the well-known Tanner's law where the droplet height, d0, decreases in time as d0 ~ t-1/5 ...
Popular Institutions
Popular Authors
Tim Hider
California Polytechnic State University
Robert Daniello
University of Massachusetts - Amherst
Carl Fredrik Jonathan Gustafsson
McMaster University
C. Hills
Dublin Institute of Technology
Emily Wong
Western University
Stuart A Walker
University of Tennessee, Knoxville
Joshua McGraw
McMaster University
Mikhail Khenner
Western Kentucky University
Matthew Cernick
McMaster University
Charles Haddad
University of Tennessee, Knoxville
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Popular Articles
Python Modeling Of Heat Flow In A Thermal Storage Device, Tim Hider
Drag Reduction In Turbulent Flows Over Micropatterned Superhydrophobic Surfaces, Robert Daniello
Computational Investigation Of Steady Navier-Stokes Flows Past A Circular Obstacle In Two--Dimensional Unbounded Domain, Carl Fredrik Jonathan Gustafsson
Modeling Of Dispersed Phase By Lagrangian Approach In Fluent
Hemodynamics In The Stenosed Carotid Bifurcation With Plaque Ulceration, Emily Wong
An Investigation Of Gas Bubble Generation And Measurement In Water And Mercury, Stuart A Walker
Non-Equilibrium Topographies: Surface Tension Driven Flows Reveal Polymer Properties At The Nanoscale, Joshua McGraw
Particle Subgrid Scale Modeling In Large-Eddy Simulation Of Particle-Laden Turbulence, Matthew Cernick
Accelerated Lattice Boltzmann Method For Colloidal Suspensions Rheology And Interface Morphology
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