# 3rd EJTPFGM 2003

Certosa di Pontignano, 21-27 September 2003

Organiser: Gian Piero Celata

##### List of papers presented

Monday 22 08:30-09:00 - Welcome address

Monday 22, 09:00-10:00 - Invited Lecture

Chairpersons: G.P. Celata

Bio-medical application of micro-bubbles

Y. Matsumoto,

Dept of Mechanical Engineering, The University of Tokyo

Monday 22, 10:00-11:00 - Interfacial Phenomena, IP

Chairpersons: S. Fujikawa, M. Giot

New closure relations for the wall and interfacial shear stresses in annular and stratified two-phase flow

N. Brauner and A. Ullmann

Faculty of Engineering, Tel-Aviv University

Critical roles played by an oscillating bubble in bubble-surface phenomena

K. Tsuchiya* and H. Fukuta**,

*Dept of Chemical Engineering and Material Science, Doshisha University, Kyotanabe, **Dept of Chemical Science and Technology, The University of Tokushima

Monday 22, 11:20-12:50 - Boiling Heat Transfer, BHT

Chairpersons: T. Okawa, J.R. Thome

Radiation induced surface activation

T. Takamasa*, T. Hazuku*, K. Okamoto**, K. Mishima*** and M. Furuya****

*Faculty of Marine Science, Tokyo University of Mercantile Marine, **Nuclear Engineering Research Laboratory, The University of Tokyo, ***Research Reactor Institute, Kyoto University, Kumatori, ****Central Research Institute of Electric Power

Experimental results on rewetting of hot surfaces by droplet impingement

G.P. Celata*, M. Cumo**, C. Lombardo*, A. Mariani* and L. Saraceno*

*ENEA, Institute of Thermal-Fluid Dynamics, Rome, **DINCE, University of Rome

Two-phase structure above hot surfaces in jet impingement boiling

L. Bogdanic*, H. Auracher* and P. Gardin**

*Institut f¸r Energietechnik, Berlin University, **IRSID, Maizieres-les-Metz

Monday 22, 14:30-16:00 - Microstructures, MIC

Chairpersons: A. Serizawa, P. Angeli

Single and multiphase flow of gas and liquids in microstructured channels

D. Mewes, M. Lˆrcher and L. Volpe

Institut f¸r Verfahrenstechnik, Universit‰t Hannover

Non-stationary analysis of flow boiling in minichannel

D. Brutin and L. Tadrist

Lab. I.U.S.T.I., Ecole Polytechnique Universitaire de Marseille

Convective boiling in metallic foam channel. An experimental study

B. Madani, F. Topin and L. Tadrist

Lab. I.U.S.T.I., Ecole Polytechnique Universitaire de Marseille

Monday 22, 16:20-17:20 - Waves, WA

Chairpersons: T. Takamasa, M. Ruzicka

Analysis of wave propagation in a bubbly liquid based on a two-fluid and three-pressure model

R. Egashira, S. Fujikawa and T. Yano

Division of Mechanical Science, Graduate School of Engineering, Hokkaido University

Weakly non-linear stability analysis of adiabatic annular two-phase flow

M. Hemlin and W. Frid

Dept of Energy Technology, Royal Institute of Technology, Stockholm

Tuesday 23, 09:00-10:00 - Invited Lecture

Chairpersons: I. Zun

Simultaneous visualization of particle/bubble behavior and surrounding flow

G. Matsui* and H. Monji**

*Dept of Mechanical Engineering, Kinki University, Uchita, **University of Tsukuba

Tuesday 23, 10:00-11:00 - Bubble Dynamics 1, BD1

Chairpersons: K. Tsuchiya, C.W.M. van der Geld

Microscale analysis of the surfactant effect on the single bubble behaviors

S. Takagi, T. Uda, G. Kikugawa and Y. Matsumoto

Dept of Mechanical Engineering, The University of Tokyo

An experimental study on bubble rise path after the detachment from a nucleation site in vertical upflow

T. Okawa*, T. Ishida*, I. Kataoka* and M. Mori**

*Dept of Mechanophysics Engineering, Osaka University, **Tokyo Electric Power Company

Tuesday 23, 11:20-12:50 - Bubble Dynamics 2, BD2

Chairpersons: T. Saito, I. Zun

The wake effect on the rising velocity of small bubbles

G.P. Celata*, M. Cumo**, F. D'Annibale* and A. Tomiyama***

*ENEA, Institute of Thermal-Fluid Dynamics, Rome, **DINCE, University of Rome, ***Dept of Mechanical Engineering, Graduate School of Science and Technology, Kobe University

Bubble rising velocity in one- and two-component systems

G.P. Celata*, F. D'Annibale*, P. Di Marco**, W. Grassi**, G. Memoli** and A. Tomiyama***

*ENEA, Institute of Thermal-Fluid Dynamics, Rome, **Dept of Energetics, University of Pisa, ***Dept of Mechanical Engineering, Graduate School of Science and Technology, Kobe University

Analysis of bubble dynamics in explosive boiling of droplet with fine fragmentation

A. Giri, H.S. Park and B.R. Sehgal

Dept of Energy Technology, Royal Institute of Technology, Stockholm

Wednesday 24, 09:00-11:00 - Bubbly Flows, BF

Chairpersons: G. Matsui, P. Di Marco

Turbulence structures of microbubble flow measured by PIV/PTV and LIF techniques

K. Hishida*, A. Kitagawa** and Y. Kodama**

*Keio University, Yokohama, **National Maritime Research Institute

Bubble boundary layer and bubbly flow turbulence

M. Nakagawa, M. Aritomi, Y. Kumano and M. Mori

Dept of Mechanical Science and Engineering, Tokyo Institute of Technology

Local and global scale structure of bubbly flows in GLAD (Gas Lift Advance Dissolution) system

T. Saito*, K. Tsuchiya** and T. Kajishima***

*Dept of Mechanical Engineering, Sihizuoka University, **Dept of Chemical Engineering, Doshisya University, ***Dept of Mechanical Engineering, Osaka University

Laminarization of micro bubble containing milky bubbly flow in a pipe

A. Serizawa and T. Inui

Dept of Nuclear Engineering, Kyoto University

Wednesday 24, 11:20-13:20 - Computational Methods 1, CM1

Chairpersons: Y. Matsumoto, A. Soldati

Modeling of two-phase diversion cross-flow between subchannels based on a two-fluid model

M. Sadatomi, A. Kawahara, K. Kano and S. Machidori

Dept. of Mechanical Engineering and Materials Science, Kumamoto University

A simple model for bubble response to turbulent eddies

R. Issa

Dept of Mechanical Engineering, Imperial College of Science and Medicine, London

Numerical analysis and experimental validation of bubble size distributions in two-phase bubble column reactors

F. Bertola*, L. Grundset**, H.A. Jakobsen**, L. Hagesaether**, C. Dorao**, H. Luo**, K.W. Hjarbo** and H.F. Svendsen**

*Dept of Materials Science and Chemical Engineering, Politecnico di Torino, **Dept of Chemical Engineering, Norwegian University of Science and Technology, Trondheim

Finite volume method for the solution of multi-fluid equations on unstructured meshes

A. Alajbegovic* and B. Basara**

*AVL Powertrain Engineering, Inc, Plymouth, **AVL List GmbH, Graz

Wednesday 24, 14:40-16:40 - Computational Methods 2, CM2

Chairpersons: T. Kajishima, R. Issa

Two-phase flow simulation on sliding unstructured meshes

A. Alajbegovic*, B. Basara**, D. Beader*** and I. Zun****

*AVL Powertrain Engineering, Inc, Plymouth, **AVL List GmbH, Graz, ***AVL AST, Ljubljana, ****Laboratory for Fluid Dynamics and Thermodynamics, University of Ljubljana

A computational fluid dynamic study of Leidenfrost drops

W. Frid* and H. Tinoco**

*Dept of Energy Technology, Royal Institute of Technology, Stockholm, **Forsmark Kraftgrupp AB

Cavitation calculation with the two-fluid model

A. Alajbegovic*, B. Basara** and D. Greif***

*AVL Powertrain Engineering, Inc, Plymouth, **AVL List GmbH, Graz, ***AVL AST, Maribor

Constitutive relations for droplet and bubbly flows and the role of turbulent structures

M.W. Reeks

JRC, Ispra

Wednesday 24, 17:00-18:30 - Measurements1, ME1

Chairpersons: M. Maeda, B.R. Sehgal

Measurement technique for analysis in two-phase flows involving distributed size of droplets and bubbles using interferometric method - Planer simultaneous measurements of sizing and velocity vector field

M. Maeda and T. Kawaguchi

Keio University

Measurement of liquid velocity around single bubbles using photobleaching

S. Hosokawa, R. Aoki and A. Tomiyama

Dept of Mechanical Engineering, Graduate School of Science and Technology, Kobe University

Visualization of the bubble detachment at a dip tube

G. Janssens-Maenhout and L. Dechamp

Joint Research Centre Ispra

Thursday 25, 08:30-09:30 - Invited Lecture

Chairpersons: A. Tomiyama

The principles of complexity in bubbly flow

I. Zun

Laboratory for Fluid Dynamics and Thermodynamics, University of Ljubljana

Thursday 25, 09:30-10:30 - Measurements 2, ME2

Chairpersons: M. Sadatomi, H. Auracher

A study on bubbly flow using wire-mesh tomography

M. Aritomi*, H. Kikura*, W. Wangjiraniran* and H.M. Prasser**

*Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, **Forschungszentrum Rossendorf e.v., Dresden

Measurements of liquid-metal two-phase flow by using neutron radiography and electrical conductivity probe

Y. Saito*, K. Mishima*, Y. Tobita**, T. Suzuki*** and M. Matsubayashi****

*Research Reactor Institute, Kyoto University, **Japan Nuclear Cycle Development Institute, O-arai Engineering Center, ***Institut f¸r Kern und Energietechnik, Forschungszentrum Karlsruhe, ****Tokai Establishment, Japan Atomic Energy Research

Thursday 25, 10:50-12:50 - Transient and Dynamic Analyses, TDA

Chairpersons: N. Takenaka, A. Alajbegovic

Simulation and experiments of two-phase flow water hammer transients

M. Giot and J-M. Seynhaeve

UnitÈ TERM, UniversitÈ catholique de Louvain

Fluid elastic vibration of rod bundle in two-phase cross flow

A. Serizawa, T. Sasakawa and Z. Kawara

Dept of Nuclear Engineering, Kyoto University

Phase inversion in dispersed liquid-liquid flows

K. Ioannou*, O.J. Nydal** and P. Angeli*

*Dept of Chemical Engineering, University College London, **Dept of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim

Fine fragmentation process observed by X-ray radiography

H.S. Park, R.C. Hansson and B.R. Sehgal

Dept of Energy Technology, Royal Institute of Technology, Stockholm

Friday 26, 08:30-11:00 - Droplet and Particle Flow, DPF

Chairpersons: Y. Hagiwara, A. Cartellier

The effect of fluid flow on detachnment of drops from the downstream end of a flat plate

A.S. Lexmond and C.W.M. van der Geld

Technische Universiteit Eindhoven

Collective behavior of solid particles - Influences of Reynolds number, volume ratio and particle rotation

T. Kajishima

Dept of Mechanical Engineering, Osaka University

Heat transfer characteristics of warm water flow with cool immiscible droplets in a vertical duct

M. Goto, N. Matsukara and Y. Hagiwara

Dept of Mechanical and System Engineering, Kyoto Institute of Technology

Droplet distribution in the wall region of a turbulent boundary layer

M. Picciotto, C. Marchioli and A. Soldati

Centro Interdipartimentale di Fluidodinamica e Idraulica and Dipartimento di Energetica e Macchine, Universit‡ di Udine

Recent advances in volume of fluid methods and applications to atomization

S. Zaleski*, T. Boeck* and R. Scardovelli**

*LMM, UniversitÈ Pierre et Marie Curie, Paris, **University of Bologna

Friday 26, 11:20-12:50 - Flow Pattern and Transition, FPT

Chairpersons: H. Hamaguchi, G.F. Hewitt

Update on the Kattan-Thome-Favrat flow boiling model and flow pattern map

J.R. Thome

LTCM, Swiss Federal Institute of Technology, Lausanne

Rayleigh-Benard instability of bubbly layers

M. Ruzicka*, J. Drahos* and N.H. Thomas**

*Institute of Chemical Process Fundamentals, Prague, **FRED Ltd., Birmingham

Scaling effects with respect to flow regime transitions in vertical pipes

H.-M. Prasser

Forschungszentrum Rossendorf e.v., Dresden

Friday 26, 14:30-16:00 - Void Fraction, VF

Chairpersons: K. Mishima, L. Shemer

Correlations of void fraction of gas-liquid two-phase flows in vertical pipes

T. Sakaguchi*, H. Tsubone**, M. Sadatomi***, H. Minagawa**** and H. Shakutsui*****

*Emeritus Professor of Kobe University, **Dept of Mechanical Engineering, Ariake National College of Technology, Omuta, ***Dept of Mechanical Engineering & Material Science, Kumamoto University, ****Dept of Mechanical Systems Engineering, The University of Shiga Prefecture, *****Dept of Mechanical Engineering, Kobe City College of Technology

Measurements of dynamic void fractions in stratified types of flow

J.R. Thome

LTCM, Swiss Federal Institute of Technology, Lausanne

Quantitative void fraction measurement method by neutron radiography and some applications

N. Takenaka and H. Asano

Dept of Mechanical Engineering, Kobe University

Friday 26, 16:20-18:20 - Jets, JE

Chairpersons: K. Hishida, L. Tadrist

Role of fluid properties on the critical conditions of air entrainment by smooth plunging jets

A. Cartellier* and J.C. Lasheras**

*LEGI, Grenoble, **MAE Department, University of California at San Diego

Numerical analysis of liquid jet instability - Effects of cavitation in a nozzle

A. Sou, K. Hayashi and A. Tomiyama

Dept of Mechanical Engineering, Graduate School of Science and Technology, Kobe University

Investigation of two-phase flows generated by cavitation inside high-pressure injection nozzles

I. Baz, M. Lance, J.C. Champoussin and J.L. Marie

Laboratoire de Mécanique des Fluides et d'Acoustique, Ecole Centrale de Lyon

Mixing process of particles into a jet in downer-type mixer

H. Monji*, G. Matsui**, R. Ogiso*** and A. Mizusaki*

*Institute of Engineering Mechanics and Systems, University of Tsukuba, **Dept of Mechanical Engineering and Biomimetics, School of Biology-Oriented Science and Technology, Kinki University, Uchita, ***Chiyoda Advanced Solutions, Yokohama

Saturday 27, 08:30-11:00 - Slug Flow, SF

Chairpersons: N. Brauner, M. Aritomi

Sound transmission in two-phase slug flows

P.J. van Dijk, A. Prosperetti and A. Biesheuvel

University of Twente, J.M. Burgers Centre for Fluid Mechanics

Experiments on the turbulence structure and the void fraction distribution in the Taylor bubble wake

L. Shemer, A. Gulitsky and D. Barnea

Dept of Fluid Mechanics, Tel-Aviv University

A three-dimensional study of Taylor bubble turning in two-phase downflow

P.M. Ujang, C.J. Lawrence and G.F. Hewitt

Dept of Chemical Engineering and Chemical Technology, Imperial College, London

Flow characteristics of a single large bubble rising in an inclined rectangular channel

H. Hamaguchi

Faculty of Human Development, Kobe University

Validity of the homogeneous model for the prediction of liquid holdup within the slug body

C.P. Hale, G.F. Hewitt, I.G. Manolis, M.A. Mendes, S.M. Richardson and W.L. Wong

Dept of Chemical Engineering and Chemical Technology, Imperial College, London

Saturday 27, 11:30-12:30 - Discussion for future collaboration