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An axisymmetric interfacial tracking model for melting-vaporization-resolidification in a thin metal film irradiated by pico to femtosecond pulse lasers
(University of Missouri--Columbia, 2010)
A two dimensional axisymmetric, interfacial tracking method is developed to model rapid melting and solidification of a free standing metal film subjected to an ultra-short laser pulse. Finite volume method is employed to ...
Analysis of oscillatory flow and heat transfer in an oscillating heat pipe
(University of Missouri--Columbia, 2010)
An advanced physical and theoretical model of a U-shaped minichannel - a building block of an Oscillating Heat Pipe (OHP) - has been developed step by step. a) The gravity and pressure loss at the bend are included in the ...
Infiltration and solid-liquid phase change in porous media
(University of Missouri--Columbia, 2009)
Many natural phenomenon and engineering systems involves phase change and infiltration in porous media. Some examples are the freezing of soil, frozen food, water barrier in construction and mining processes, chill casting ...
Analysis and modeling of direct selective laser sintering of two-component metal powders
(University of Missouri--Columbia, 2005)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Direct Selective Laser Sintering (SLS) is an emerging technology of Solid Freeform Fabrication (SFF) that 3-D parts are built from the metal-based ...
Modeling of selective laser sintering of single-component metal powders
(University of Missouri--Columbia, 2006)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Selective Laser Sintering (SLS) is a rapid prototyping technology which enables freeform fabrication of complex-geometry components directly from ...
Analysis of heat transfer in subcooled metal powder subjected to pulsed laser heating
(University of Missouri--Columbia, 2005)
The interaction of metal powder and pulsed laser heat flux is investigated on two levels, the powder bed level and the particle level. The locations of the thermal penetration depth and the liquid-solid interface are ...
Granular particle packing process study using DEM method
(University of Missouri--Columbia, 2014)
Entropy generation and thermal performance of a pulsating heat pipe
(University of Missouri--Columbia, 2012)
A U-shaped pulsating heat pipe is an excellent heat transfer performance device. This study has been investigated step by step. a) The entropy generation is based on the second law of thermodynamics. In the present study, ...
Micro-scale heat transfer simulation on water with molecular dynamics and hybrid approachMicro-scale heat transfer simulation on water with molecular dynamics and hybrid approach
(University of Missouri--Columbia, 2014)
Water is most widely existing liquid in the earth; beyond all question, it takes a very important role in human daily life and many applications in industrial field. The heat transfer phenomena have drawn a great attention ...
Molecular dynamics simulation of evaporation and explosive boiling over nanostructured surfaces
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Evaporation and boiling is important for many processes including removal of CO2 from the anode of methanol fuel cells, electronic cooling and various ...
Dual phase lag behavior of living biological tissues in laser hyperthermia
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] A Generalized dual phase lag behavior for living biological tissues are investigated for blood and tissues and also developed a generalized dual phase ...
Dynamic simulation of particulate and molecular systems
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Granular packing of millimeter-scale and micrometer-scale particles with three different size distributions (monosize, bimodal and Gaussian) are studied ...
Ab initio molecular dynamics study of nanoscale heat transfer and energy conversion
(University of Missouri--Columbia, 2013)
In this thesis, ab initio molecular dynamics simulation based on a plane wave/pseudopotential implementation of density functional theory was adopted to investigate nanoscale heat transfer and energy conversions for ...
Molecular dynamics simulation of nanosintering processes
(University of Missouri--Columbia, 2010)
In this thesis, two scenarios of simulations are studied by molecular dynamics (MD) method. The first one will investigate the neck growth in the laser sintering of different-size gold (100) nanoparticles under different ...
Multiscale modeling and simulation of laser interaction with metals
(University of Missouri--Columbia, 2016)
The electron temperature dependent electron heat capacity, electron thermal conductivity and effective electron-phonon coupling factor are modeled and computed on the basis of ab initio quantum mechanics (QM) calculation. ...
Numerical investigation of two phase flow using automatic controller system and chaotic approach
(University of Missouri--Columbia, 2016)
An automatic and intelligent system to recognize the two-phase water-air flow regime in a vertical tube based on fuzzy logic and genetic algorithm is proposed. Two approaches, volume of fluid (VOF) and Eulerian model, were ...
A comprehensive model for energy transport and ablation of metal films induced by ultrashort pulsed lasers
(University of Missouri--Columbia, 2012)
A comprehensive laser material ablation model was developed to describe energy transport, ultrafast phase changes, and material ablation of metal films irradiated by ultrashort laser pulses. The two optical models were ...
Study of micro-sized particle deposition using DEM, CFD-DEM and SPH approach
(University of Missouri--Columbia, 2016)
Self-assembly and packing of colloids and micro or nano scale particles has become a subject of great interest due to widespread advancement of micro-scale technologies. In this thesis, several numerical analyses are ...