PROFESSIONAL ADDRESS:
UFRJ/COPPE/PEM Federal University of Rio de Janeiro
Technology Center, G Building
21941-914 Ilha do Fundão, RJ - Brazil Tel: +55 21 3938-8402 E-mail: gustavo.rabello@coppe.ufrj.br
Numerical simulation is an important tool to solve two-phase problems
found in many engineering problems. Therefore, a project in the thematic
line of multiphase flow simulation, which has important applications
in the area of petroleum, micro-reactors and biomechanics. The project’s
emphasis is on the development of numerical simulation methods based
on unstructured meshes, for flows that presents two or more distinct
phases with phase change.
Cooling of electronics is a challenging subject due to the fast growth
of computer processing capacity. Cooling of datacenters is estimated to
have an annual electricity cost of 1.4 billion dollars in the USA and
over 3 billion dollars worldwide. Currently, pure air/water cooling is
the most widely used means for thermal regulation of datacenters, which
represents around 45% of the total energy consumed in a datacenter.
However, the energy efficiency of these methods is very low. Therefore,
improvements are essential to ensure faster processors with sustainable
energy management.
This proposal aims at investigate the means of propagating of the
COVID-19/SARS-CoV-2 through two complementary approaches between
individuals and groups of individuals during social contact. A small
scale model is proposed to investigate the behavior of salivary droplets
between individuals who may be contaminated by orally transmitted diseases.
The numerical simulation is an important tool to solve two-phase flow
problems found in several engineering processes, such as oil drilling,
reservoir filling and cooling of electronic components. In medicine, it
has been shown an efficient tool for the study of biological problems,
such as corneal replacement, the latter of great importance for patients
in need of transplant.
The numerical simulation is an important tool to solve two-phase flow
problems found in several engineering processes, such as oil drilling,
reservoir filling and cooling of electronic components. In medicine,
it has been shown an efficient tool for the study of biological
problems, such as corneal replacement, the latter of great importance
for patients in need of transplant.
This document presents the proposal of the Organizing Committee of the
4th Workshop on Advances in CFD and Modeling of Interface Dynamics in
Capillary Two-Phase Flows, to be held in the city of Rio de Janeiro - RJ
in May 2019. It is a worldwide event, held in continuously since 2015
(Lausanne - Switzerland), and the next one in Kobe - Japan in October
2018, where the current workshop will be held in Brazil for the first
time in 2019.
This document presents the proposal of the Organizing Committee of the
4th Workshop on Advances in CFD and Modeling of Interface Dynamics in
Capillary Two-Phase Flows, to be held in the city of Rio de Janeiro - RJ
in May 2019. It is a worldwide event, held in continuously since 2015
(Lausanne - Switzerland), and the next one in Kobe - Japan in October
2018, where the current workshop will be held in Brazil for the first
time in 2019.
Developments in modern high-speed microprocessors enhance communication,
computing and electronics, thereby playing a profound role in our
societies and industries. Sustaining long-term high speeds and reliable
operation requires efficient heat dissipation. Phase-change based
cooling offers a promising alternative to conventional air-cooling in
both earth and space environments.
The numerical simulation is an important tool to solve two-phase flow
problems found in several physical processes, such as oil drilling,
reservoir filling, hemodynamic and cooling of electronic components, the
latter of great importance for describing problems related to controling
flow and temperature conditions for new generation of stack processors.
The numerical simulation is a essential tool to troubleshoot multiphase
flows found in many physico-chemical processes, such as the oil and gas
extraction and processing, filling of hydroelectric reservoirs,
drug-eluting transport in biological systems and cooling of high
technology electronic components, all of them of utmost importance for
achieving technology and development to the State of Rio de Janeiro.
A third of the capacity of power generation in Rio de Janeiro and Brazil
comes from power plants. According to the Ministry of Mines and Energy,
the thermal power generation using coal corresponds to twenty-two plants
with an installed capacity of about 3.600MW. Considering the low quality
of Brazilian coal and low calorific value, large coal volume is required
to obtain adequate temperature conditions in thermoelectric generation systems.
Multiphase flow are characterized by the presence of an interface
separating two substances which may or may not be in the same phase. The
presence of such physical interface increases the complexity of the flow
and as a direct consequence, much of the multiphase problems encountered
with difficult engineering solution.
The numerical simulation is an important tool to solve biphasic problems
encountered in various physical processes, such as oil drilling,
reservoir filling, cooling of electronic components and substances
transport processes in biological systems, the latter being of great
importance for the description of problems related to coronary artery
disease (CAD).
Increased functionality and power consumption of microdevices and high
power electronics has come at a cost: power dissipation and heating.
This heat must be dissipated to ensure reliable operation of such
devices in both earthly and reduced gravity environments (eg space
industry), without adversely affecting their performance. With a highly
competitive world market, worth tens of billions of Euros, it is
imperative for EU to gain a competitive position in this field
(currently led by USA and China).
The modelling of rising bubbles in tubes or pipes is an important
challenge, specifically in complex geometries, such pipes of non-uniform
diameter. Such phenomena can be observed in oil wells or food
processing. The objective of this study is to quantify experimentally
and simulate numerically the rising of fluid in another immiscible fluid
in a vertical conical pipe.
The topic of the post-doc is numerical two-phase flows with emphasis in
micro-macro two-phase flows in capillaries with different geometries
found in many applications within the oil and gas field. The work is
being performed in Gesar Group - UERJ. (GESAR) at the State University
of Rio de Janeiro (UERJ). More info will be updated soon!
The topic of the post-doc is boiling and condensation in convective flow
with multiple bubbles found in nuclear reactors. The work was performed
in the Nuclear Science and Engineering (NSE) at the Massachussetts
Institute of Technology (MIT).
The topic of the doctorate is two-phase flow and heat transfer in
microchannels. One of the major aspects of this thesis will be to extend
the single phase code (developed during the masters studies) and
implement two-phase and heat transfer bringing the surface tension
effects into the code for elongated bubble flows, annular flows and
bubbly flows (for both evaporating flows and perhaps also for some
condensing flows).
From 2007 to mid-2008 I worked as a young researcher in the Group for
Study and Simulations of Reservoir Filling (GESAR) . This one-year
experience brought me the necessary skills for large code development,
since the multi-disciplinary project required experience in many
different areas such as engineering, biology, chemistry and mathematics.
The project consisted in numerical simulation of hydropower reservoirs filling.
Followed by the end of my bachelor’s project, I started my masters
studies at the Federal University of Rio de Janeiro (UFRJ) in the
Metallurgical and Materials Engineering Department (COPPE). The period
of two years is required to receive the Master’s degree and during this
period we must follow some courses and write a dissertation based on a
specific theme.
I received my bachelor diploma (B.Eng.) in mechanical engineering at the
State University of Rio de Janeiro (UERJ) in 2005. In early 2003, I
started to be involved in research by participating in monitoring and
undergraduate research. During this period I focoused my studies on
fluid dynamics and finally presented my bachelor project
