Atila Pantaleao Silva Freire

Instituição:

Universidade Federal do Rio de Janeiro

Centro:

Centro de Tecnologia

Unidade:

Coordenação dos Programas de Pós-Graduação de Engenharia

Departamento:

Programa de Engenharia Mecânica/COPPE

ORCID:

não disponível no Lattes


Formação:

  • University of Cambridge

    Engenharia Aeronautica | Doutorado | 1984 - 1987

  • Universidade Federal do Rio de Janeiro

    Engenharia Nuclear | Mestrado | 1982 - 1983

  • Observatório Nacional

    Astronomia | Mestrado | 1982 - 1984

  • Instituto Militar de Engenharia

    Engenharia Mecânica e de Automóveis | Graduação | 1977 - 1981
Laboratórios:
Nuvens de Palavras:
Artigos:

(84.62% artigos com DOI)

Titulo DOI Ano
Surging parametrization for gas-liquid centrifugal pumps 10.1016/j.pnucene.2024.105099 2024
Slug flows of gas and shear-thinning fluids in horizontal pipes 10.1016/j.ijmultiphaseflow.2023.104473 2023
Fault diagnosis of electric submersible pumps using vibration signals 10.1007/s40430-023-04370-z 2023
The effects of swirl vanes and a vortex stabilizer on the dynamic flow field in a cyclonic separator 10.1016/j.ces.2021.117099 2022
Phenomenology of bubble breakup and coalescence in sudden expansions and contractions in vertical pipes 10.1016/j.ijmultiphaseflow.2021.103840 2022
Asymptotic matching arguments and DNS for transpired turbulent flows 10.1007/s40430-022-03720-7 2022
Experimental study of gas-lift systems with inclined gas jets 10.1016/j.petrol.2022.110749 2022
Breakup and coalescence of large and small bubbles in sudden expansions and contractions in vertical pipes 10.1016/j.ijmultiphaseflow.2020.103548 2021
Statistical Moments Transport Model for the Prediction of Slug Flow Properties 10.1016/j.ijmultiphaseflow.2019.103086 2019
Similarity laws for transpired turbulent flows subjected to pressure gradients, separation and wall heat transfer 10.1016/j.ijheatfluidflow.2019.108436 2019
Slug flow models: Feasible domain and sensitivity to input distributions 10.1016/j.petrol.2018.05.008 2018
Wall function treatment for bubbly boundary layers at low void fractions 10.1590/0001-3765201820170101 2018
Phenomenological friction equation for turbulent flow of Bingham fluids 10.1103/physreve.96.023107 2017
On the connection between Kolmogorov microscales and friction in pipe flows of viscoplastic fluids 10.1016/j.physd.2017.11.005 2017
Thermal analysis of anti-icing systems in aeronautical velocity sensors and structures 10.1007/s40430-015-0449-7 2016
Velocity and temperature profiles, wall shear stress and heat transfer coefficient of turbulent impinging jets 10.1016/j.ijheatmasstransfer.2016.10.105 2016
Turbulence and Bubble Break up in Slug Flow with Wall Injection 10.1007/s10494-016-9786-6 2016
Phenomenological Blasius-type friction equation for turbulent power-law fluid flows 10.1103/PhysRevE.92.063006 2015
The persistence of logarithmic solutions in turbulent boundary layer systems 10.1007/s40430-015-0433-2 2015
Transient thermal boundary layers over rough surfaces 10.1016/j.ijheatmasstransfer.2013.11.076 2014
Length-area-volume of long bubbles in horizontal slug flow 10.1016/j.ijmultiphaseflow.2014.05.007 2014
Flow in the immediate neighbourhood of a wall: local solutions in the fully turbulent region 2014
Feasible domain of Walker's unsteady wall-layer model for the velocity profile in turbulent flows 10.1590/0001-3765201420130528 2014
An experimental investigation of the effects of gas solubility on the properties of horizontal slug flow 10.1016/j.ijmultiphaseflow.2012.10.007 2013
Asymptotic Analysis of Turbulent Boundary-Layer Flow of Purely Viscous Non-Newtonian Fluids 10.1016/j.jnnfm.2013.05.003 2013
The Walker Function 10.3888/tmj.14-11 2012
Wall shear stress measurements and parametric analysis of impinging wall jets 10.1016/j.ijheatmasstransfer.2012.06.028 2012
The drag coefficient of a sphere: An approximation using Shanks transform 10.1016/j.powtec.2012.12.033 2012
Scaling of turbulent separating flows 10.1016/j.ijengsci.2010.12.001 2011
Flow over riblet curved surfaces 10.1088/1742-6596/318/2/022035 2011
Slug flow in horizontal pipes with transpiration at the wall 10.1088/1742-6596/318/2/022014 2011
The distribution of wall shear stress downstream of a change in roughness 10.1016/j.ijheatfluidflow.2010.06.006 2010
The effect of roughness on separating flow over two-dimensional hills 10.1007/s00348-008-0583-4 2009
Note on a Parametric Relation for Separating Flow over a Rough Hill 10.1007/s10546-009-9362-x 2009
LDA and PIV characterization of the flow in a hydrocyclone without an air-core 10.1016/j.petrol.2009.11.006 2009
The numerical computation of near-wall turbulent flow over a steep hill 10.1016/j.jweia.2008.01.011 2008
Water Tank Studies of Separating Flow Over Rough Hills 10.1007/s10546-008-9314-x 2008
Water tank and numerical model studies of flow over steep smooth two-dimensional hills 10.1007/s10546-006-9100-6 2007
Near wall characterization of the flow over a two-dimensional steep smooth hill 10.1007/s00348-007-0252-z 2007
The near wall behavior of an impinging jet 10.1016/j.ijheatmasstransfer.2005.01.027 2005
Experimental investigation of turbulent boundary layers over steep two-dimensional elevations 10.1590/S1678-58782005000400001 2005
An inverse problem for the estimation of upstream velocity profiles in an incompressible turbulent boundary layer 10.1016/j.ijheatmasstransfer.2003.09.012 2004
On the displacement in origin for turbulent boundary layers subjected to sudden changes in wall temperature and roughness 10.1016/S0017-9310(02)00036-4 2002
Note on a thermal law of the wall for separating and recirculating flows 10.1016/S0017-9310(01)00232-0 2002
Bubble plumes and the Coanda effect 10.1016/S0301-9322(02)00031-9 2002
Analytical prediction of friction factors and Nusselt numbers of turbulent forced convection in rod bundles with smooth and rough surfaces 10.1016/S0029-5493(02)00155-3 2002
Wind tunnel simulation of atmospheric boundary layers 2002
On Kapplun limits and the multi-layered asymptotic structure of the turbulent boundary layer 1999
Characteristics of the atmospheric boundary layer over terrains with abrupt variation in properties 1999
An analytical near wall solution for the ?¿? model for transpired boundary layer flows 10.1016/S0017-9310(98)00378-0 1999
On single limits and the asymptotic behaviour of separating turbulent boundary layers 10.1016/S0017-9310(97)00371-2 1998
The state of the art in turbulence modelling in Brazil 1998
On Kaplun Limits And The Asymptotic Structure Of The Turbulent Boundary Layer 1996
Velocity and temperature distributions in compressible turbulent boundary layers with heat and mass transfer 10.1016/0017-9310(94)00352-V 1995
The transfer of heat in turbulent boundary layers with injection or suction: universal laws and Stanton number equations 10.1016/0017-9310(92)90264-S 1992
Asymptotic Structure And Characteristics Of Turbulent Boundary Layers: Short Review And Recent Developments 1991
Approximate solutions to singular perturbation problems: The intermediate variable technique 10.1016/0022-247X(90)90444-K 1990
Conversion Of The Energy Of A Water Flow Using The Magnus Effect 1990
Efeito Magnus: Sua Utilização Na Conversão de Energia Cinética de Uma Corrente de Água 1990
A Detailed Review Of A Solution Procedure For Shock-Wave/Turbulent Boundary Layer Interaction Problems 1989
On the Matching Conditions for a Two-Deck Compressible Turbulent Boundary Layer Model 10.1002/zamm.19890690216 1989
An extension of the transpired skin-friction equation to compressible turbulent boundary layers 10.1016/0017-9310(88)90172-X 1988
An asymptotic approach for shock-wave/transpired turbulent boundary layer interactions 10.1007/BF00948959 1988
An asymptotic solution for transpired incompressible turbulent boundary layers 10.1016/0017-9310(88)90090-7 1988
Application of the boundary-value technique to singular perturbation problems at high Reynolds numbers 10.1016/0022-247X(87)90345-3 1987
Eventos:

(0.00% eventos com DOI)

Titulo DOI Ano
Experimental and Numerical Investigation of Particle Erosion on Squared T-Junctions 2023
Numerical Simulation of High-Concentration Slurry Flow in Squared T-Junctions 2023
Effect of Concentration on Particle Velocity in Slurry Flow in Squared T-Junctions 2023
Experimental Investigation of Bubble Turbulent Fragmentation in a Centrifugal Pump 2022
Universal Performance Curves for Gas-Liquid Centrifugal Pumps 2022
Experimental Investigation of Particle-Laden Gas-Jets Impinging on Inclined Surfaces 2022
Experimental and Numerical Analysis of Erosion by Particle-Laden Impinging Jets 2022
Fault Diagnosis of Electric Submersible Pumps Using Audio and Vibration Signals 2022
Bubble breakup in centrifugal pumps: a phenomenological approach 2022
The Influence of Geometry and Reynolds Number on Particle-Laden Flow Erosion Wear Modelling 2020
Bubble Diameter Distribution in Vertical Liquid Cross Flows 2020
Slug Flow Modelling through Statistical Moments Transport 2019
Effects of Injection Angle on Bubble Distribution in Gas-lift Injectors 2019
The Towering Early Scientific Work of K. Hanjalic 2019
NEW CONCEPT FOR A LIQUID-LIQUID CYCLONIC VALVE 2019
Two-phase Flow in a Radial Centrifugal Pump and its Effects on Hydraulic Head and Flow Patterns 2019
Turbulent Boundary-Layer of Power-law Fluids Near a Position of Separation 2019
NON-NEWTONIAN SEPARATED FLOW OVER A TWO-DIMENSIONAL RAMP 2018
Similarity law for transpired turbulent flows subject to pressure gradients and separation 2018
Separated Turbulent Boundary Layers of Power-Law Fluids 2018
Experimental Analysis of Turbulent Smooth and Rough Channel Flows 2018
Direct Numerical Simulations of Pipe Flow With Wall Transpiration 2017
EVALUATION OF MODELS FOR HORIZONTAL GAS-NON-NEWTONIAN SLUG FLOW 2017
MECHANISM OF BUBBLE BREAKUP AND COALESCENCE IN EXPANSIONS AND CONTRACTIONS 2017
CHARACTERIZATION OF INCLINED GAS JETS IN VERTICAL LIQUID CROSSFLOWS 2017
HORIZONTAL PIPE SLUG FLOWOF AIR/SHEAR-THINNING FLUID:EXPERIMENTS AND MODELLING 2017
SPLITTING AND MERGING OF LARGE AND SMALL BUBBLES IN SUDDEN EXPANSIONS AND CONTRACTIONS 2017
Experimental Investigation of Slug Flow in a Pipe Subjected to Fluid Injection at the Wall 2016
Characterization of inclined gas jets in two-phase crossflow 2016
Pressure drop in single and two-phase flows in horizontal pipes subject to fluid transpiration at the wall 2016
Experimental assessment of two-phase flowacross sudden expansions and contractions 2016
Experimental study of gas-liquid flow separation at a T-junction 2016
On the organized rough elements distributions and the drag reduction effects of turbulent flows in pipes 2016
Investigation of the Influence of Magnetic and Eletromagnetic Fields on CaCO3 precipitation in pipe flows 2015
An experimental assessment of the fluid dynamics of gas lift mandrels 2015
Pressure drop and turbulence statistics in transpired pipe flow 2015
Statistics of Slug Flow subjected to wall transpiration 2015
Fully Turbulent Mean Velocity Profile for Purely Viscous non-Newtonian Fluids 2015
Single and two-phase inclined jets in a cross flow 2015
Friction equation for purely viscous non-Newtonian fluids from Kolmogorov's theory 2015
Feasible domain and uncertainty analysis of mechanistic slug models 2015
Parametric analysis of the heat transfer in impimging jets 2014
Flow of Purely Viscous Non-Newtonian Fluids in Rough Pipes 2014
The Logarithmic Solution of Purely Viscous Non-Newtonian Fluids 2014
Turbulent flow of power law fluids in rough pipes 2014
Turbulent flow over smooth and rough surfaces subjected to a transient heat flux 2014
LDA measurements of air-water vertical flows across sudden expansions and contractions 2014
Numerical study on the dispersion of chemical additives in turbulent pipe flow for three injection angles 2014
Pressure drop in pipe flow with fluid injection at the wall 2014
Characterization of Interfaces in Turbulent Slug Flows 2013
Interfaces of Long Bubbles in Horizontal Turbulent Slug Flows 2013
Drop Sizes of Emulsions in Cyclone-based Valves 2013
Description of the shape of long bubbes in horizontal turbulent slug flow 2013
Measurement of Particle Size Distribution Downstream of a Cyclone-based Valve 2012
Analysis of slug flow properties in the presence of a soluble gas 2012
Gas solubility effects on slug flow 2012
On the dynamic behaviour of turbulent impinging jets 2012
Predictions of Gas Solubility Effects on The Properties of Slug Flows 2012
Parametric scaling of turbulent impinging jets over smooth surfaces 2012
Experimental characterization of the flow field and oil droplet distribution across a cyclonic valve 2012
Slug flow in horizontal pipes with transpiration at the wall 2011
Flow over riblet curved surfaces 2011
An Experimental Investigation of Horizontal Two-phase Flow Considering the Effects of Gas Solubility 2011
Experimental study on the dispersion of chemical additives in turbulent pipe flow 2011
LDA Measurements in Horizontal Slug Flow with Wall Transpiration 2011
Projeto de aparato experimental para avaliação de incrustações em tubulações horizontais 2011
The prediction of near wall bubbly flow through a modified kappa-epsilon model. 2010
Effects of flow transpiration on pressure losses in horizontal slug flow. 2010
Experimental investigation of a cyclone-based valve 2010
Mechanics of drag reduction by riblets 2010
Lei universal de resistência para dutos lisos e rugosos sujeitos a transpiração de fluido na parede 2009
The distribution of wall shear stress downstream of a change in roughness 2009
Three Dimensional Velocity Field of the Flow Around the Keel of a Yatch 2009
Impingement of a confined axisymmetric jet on smooth and rough flat plates: near wall behaviour 2009
The Asymptotic Structure of Turbulent Separating Flows 2009
Construction of 3D-PIV images from 2D measurements: an assessment 2009
Effects of flow transpiration on pressure losses in duct flow 2009
Numerical solution of a two-equation turbulence model for bubbly boundary layers at low void fractions 2009
Flow features of a confined jet impinging onto rough walls 2009
Measurement of wall shear stress on flow over a wall change from rough to smooth 2009
An analytical near wall solution for the kappa-epsilon model for bubbly flows 2008
Separating flow over two-dimensional rough hills 2008
Law of the wall formulation for separating flow over a rough hill 2008
Flow over a change in roughness: experimental characterization of the transition region 2008
Turbulent boundary layer high-order moments: uncertainty analysis for PIV measurements 2008
Flow at a separation point over a rough wall 2008
Validation of Tutbulence Models for Performance Simulation of a Centrifugal Compressor Impeller 2008
A Parametric Relation for Separating Boundary Layers over Rough Hills 2008
Experimental and numerical characterization of the flow around the keel of a yatch 2008
The Error in Origin from First Principles 2007
Functional Behaviour of Scaling Velocities for Turbulent Separating Flows 2007
Law of the Wall Formulations for Separating Flow over Rough Surfaces 2007
PIV Measurements of Air-Water Vertical Two-Phase Flow Across a Sudden Expansion 2007
Entrainment Coefficient and Coanda Bubble Plume Flows 2007
Some Measurements in a Confined Turbulent Jet 2007
Numerical computation of the flow around roughness elements 2006
Flow over Rough Hills 2006
Measurements in a confined turbulent jet 2006
Scaling Laws for turbulent boundary layers subject to adverse pressure gradients and separation 2006
Scaling Laws for Separating Turbulent Boundary Layers 2006
Aerodynamic Forces on a Rough Wall: Numerical Evaluation through the BSL-RSM 2006
On the numerical calculation of impinging jets 2005
Investigation of turbulent flow over a steep hill using laser Doppler anemometry 2005
A comparison between numerical and laboratory data for two-dimensional steep topographic elevation 2005
Numerical investigation of the flow around the keel of a yacht 2005
Experimental simulation of the flow around the keel of a yacht 2005
Turbulence measurements in the atmospheric boundary layer: a comparison between hot-wire and sonic anemometer data 2005
Characteristics of air-water vertical two-phase flow accros a sudden expansion 2005
The log-law method as a means for evaluation of skin-friction on flows over abrupt changes in surface roughness 2005
Numerical simulation of open flow in open-channel flows 2005
Logarithmic behaviour of the wall layer for an impinging jet 2004
The turbulent boundary layer subject to a rough-to-smooth surface change 2004
Revisiting the law of the wall for two-phase turbulent boundary layers 2004
Transient convection in atmospheric turbulent boundary layers: a comparison between flow over smooth and rough surfaces 2004
The near wall behaviour of an ortogonally impinging jet 2004
Statistical properties of boundary layers subject to changes in surface roughness 2004
Turbulence Modelling of Hydrocyclone Flow 2004
Estimation of Space-wise and time-wise varying heat transfer coefficients for an impinging turbulent round jet 2004
A Wind Tunnel Study of Thermally Stratified Boundary Layers over Rough Surfaces 2003
Experimental Characterizatio of Two-Phase Flow 2003
The Bhaviour of Near-Wall Bubble Plumes 2003
An Experimental Heat Transfer Study of a Cold Jet Impinging on a Hot Surface 2003
On the Flow Near the Leading Edge of a Flat Plate 2003
A Comparative Study of Hot/Cold Wire Anemometer Data Reduction 2003
A Study of the Heat Transfer Behaviour of a Cold Jet Impinging on a Hot Surface 2003
Periodically Heated Turbulent Flow over a Rough Surface: Characteristics of the Error in Origin. 2003
On Kaplun limts and the turbulent boundary layer near the leading edge of a flat plate 2002
Estimation of upstream velocity profiles in an incompressible turbulent boundary layer via universal laws 2002
Reducing hot/cold wire anemometer data on low Reynolds number flows 2002
A comparison between wind tunnel simulations and field measurements of atmospheric boundary layers 2002
A wind tunnel study of thermally stratified boundary layers 2002
Inverse analysis of turbulent boundary layers 2002
An asymptotic structure of separating turbulent flows 2002
Stratified flow in a wind tunnel environment 2002
Turbulência e seu desenvolvimento histórico 2002
O vôo dos pássaros e a mecânica dos fluidos 2002
Bubble Plumes and the Coanda Effect 2001
An experimental study of turbulent stratified flows over hills with large changes in surface elevation 2001
Design features and flow measurements in a thermally stratified wind tunnel 2001
An Inverse Problem for the Estimation of Upstream Velocity Profiles in an Incompressible Turbulent Boundary Layer 2001
Numerical Study of Turbulent Flow Subjected to Sudden Changes in Wall Temperature and Roughness 2001
An Integral Formulation for the Entrainment Coefficient Variation on Double Plume Arrangements 2001
Prediction of Friction Factors and Heat Transfer Coefficients of Turbulent Forced Convection in Rod Bundles with Surface Roughness 2001
Wind Tunnel Simulation of Atmospheric Boundary Layer Flows. 2000
Heat Transfer in the Re-Attachment Region of a Backward-Facting Step Flow. 2000
A Numerical Study of the Dynamics of Steel Melt in a Flow Tundish. 2000
Response of a Turbulent Boundary Layer to Sudden Changes in Wall Temperature and Roughness. 2000
A Wind Tunnel Study of Turbulent Flow over Hills. Part I: Smooth Changes in Surface Elevation. 2000
A Wind Tunnel Study of Turbulent Flow over Hills. Part II: Large Changes in Surface Elevation. 2000
Escoamento Turbulento com Troca de Calor sobre um Degrau. 2000
Simulation of Atmosferic Boundary Layer Flows in Short Wind Tunnels. 2000
Analytical prediction of friction factors and heat transfer coefficients of turbulent forced convection in rod bundles with surface roughness 1999
Modelling confined bubble plumes issuing from distinct sources 1999
A thermal law of the wall for separating and recirculating flows 1999
The turbulent boundary layer subjected to a sudden change in surface roughness and temperature 1999
Large artificially generated turbulent boundary layers for the study of atmospheric flows 1999
The displacement in origin for the thermal turbulent boundary layer 1999
A modified entrainment coefficient relation for the description of the Coanda effect on bubble plumes. 1999
A higher order correction for the law of the wall for particle laden flows 1998
On the displacement in origin for turbulent boundary layers on a surface downstream of step changes in wall temperature and roughness 1998
A wind tunnel study of boundary layer flow over a sudden change in surface roughness 1998
On the interaction between a gas-liquid bubble plume and a wall 1998
An analytical near wall solution for the kappa and epsilon equations for transpired boundary layer flows: Numerical implementation and experimental facts 1998
Experimental characterization of a turbulent boundary layer subjected to a step change in surface roughness 1998
A modified eddy viscosity and bubble diffusity model for vertical gas bubble plume in a liquid 1997
A new law of the wall formulation 1997
Characteristics of a turbulent boundary layer when subjected to a step change in surface roughness and temperature 1997
Further results on the asymptotic behaviour of interacting turbulent boundary layers and shock waves 1997
An algebraic turbulence model for the description of bubble plumes 1997
On The Numerical Calculation Of Bubble Plumes, Including An Experimental Investigation Of Its Mean Properties 1996
A Consistent Asymptotic Solution ror the kappa and Epsilon Equations for Transpired Boundary Layer Flows 1996
The Stanton Number Equation Near A Separation Point 1996
The Law Of The Wall For Two-Phase Solid-Liquid Systems 1996
The Turbulence Of Mixing Of Iron Particles In Water Systems 1996
The Asymptotic Structure of The Turbulent Boundary Laye rwhen Subject to an Interacting Shock-Wave 1996
On Kaplun Limits And The Asymptotic Structure Of The Turbulent Boundary Layer 1995
A Modified Near Wall kappa-epsilon Turbulence Model For Transpired Turbulent Boundary Layers 1995
The Thermal Turbulent Boundary Layer Near A Separation Point: Law Of The Wall Formulation 1995
The Asymptotic Structure Of The Thermal Turbulent Boundary Layer Near A Separation Point 1994
The Response Of A Laminar Boundary Layer To Periodic Wall Perturbations 1994
The Effects Of Hydrate Formation On The Mean Properties Of Bubble Plumes, Including The Prediction Of Surface Waves 1994
A Numerical Study Of The Response Of A Laminar Boundary Layer To Pulse-Type Perturbations 1993
On Round Bubble Plumes Subject To Cross Flow 1993
A Comparative Study Of Four Algebraic Turbulence Models For Transpired Turbulent Boundary Layers With An Adaptive Finite Different Solution Procedure 1993
Escalas Características da Camada Limite Turbulenta Na Região de Separação 1992
The Response Of A Laminar Turbulent Boundary Layer To Pulse-Type Perturbations 1992
A Separation Criterion For The Turbulent Boundary Layer 1992
Influence Of The Dissipation Function On The Turbulent Boundary Layer Temperature Solution 1991
A Higher Order Theory For Two-Dimensional Interactions Between Shock-Waves And Turbulent Boundary Layers 1991
A Law Of The Wall For Compressible Turbulent Boundary Layers With Injection And Transfer Of Heat 1991
Drag Reduction By Passive Control At Transonic Speeds: The Skin-Friction Equation 1990
The Turbulent Boundary Layer Wit Addition Of Mass And Heat 1990
Spatial Development Of Free Shear Layer Instability By A Discrete Vortex Method 1990
Analysis Of Thermal Turbulent Boundary Layers Over Rough Surfaces 1990
A Skin-Friction Equation For Shock-Wave Turbulent Boundary Layer Interactions 1989
The Thermal Turbulent Boundary Layer In An Incompressible Flow 1989
On The Matching Conditions For Turbulent Boundary Layer Problems With Heat Transfer 1988
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