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Natural-convection heat transfer in supercritical fluids
(2004)
The main objective of this study is to calculate the heat-transfer coefficients for natural convection from a heated, vertical flat plate into a supercritical fluid. In the first part of this work, an equation for the ...
Transient, three-dimensional numerical model of laser cutting processes in ceramics with phase change consideration
(2004)
Physical problems involving moving heat sources can be encountered in many industrial applications during material processing, including cutting, drilling, welding,
heat treatment, and surface alloying, to name a few. ...
Design of an intravenous drug delivery device
(2004-05)
The use of intravenous implanted devices to deliver controlled drug dosage for the treatment of certain health problems is becoming more common as an alternative to regular injection procedures. This work proposes a ...
Estudio teórico y experimental de modelos para cálculo y control de presiones sub atmósfericas durante flujo transitorio
(2004)
This research introduced MacCormack numerical scheme for the solution of the
governing equations of two-phase transient flow. The numerical solution included an
analysis of the behavior of the wave velocity under adiabatic ...
Static and dynamic analysis of a piping system
(2004-12)
An Investigation of flow-induced vibration is presented in this thesis. Three finite elements models for the pipe system were developed: a structural finite element analysis model with multi-support system for frequency ...
Dynamics of parts on narrow tracks using the multibody theory
(2004)
The vibratory feeder is used to feed parts in manufacturing processes. This work applied the multibody theory to describe the dynamic behavior of rectangular and cylindrical parts. The analysis studied the following cases: ...
Efectos de la deformación mecánica sobre compuestos de matriz de aluminio tratados térmicamente
(2004)
A novel aluminum matrix composite reinforced with ceramic particles of AlB2 obtained
through a cast process at temperatures below 800°C using commercial alloys of
aluminum-boron (5 wt%. B) and aluminum-copper (33.2 wt%. ...
Modeling of the thermal behavior of a power electronic module
(2004)
This work presents a reduced mathematical model using a practical numerical formulation of the thermal behavior of an Integrated Power Electronics Module (IPEM). This model is based on the expanded Lumped Thermal Capacitance ...
Effect of recycling on material properties of polyethylene terephthalate at various recycling ratios and recycling generations
(2004)
Recycled plastics are considered low performance materials because their properties decrease with recycling. Resin manufacturers use rules of thumb to recommend recycled plastic usage, usually 25% or less by weight. These ...
Modelling of heat transfer in open cell metal foams
(2004)
High porosity metal foams are excellent candidates for high heat dissipation. They
are employed in aerospace applications mainly, but their use has been widened to include cooling in Electronic Packaging. Other important ...