55th European Two-Phase Flow Group Meeting
Pisa 11-13 May 2026

About The Event

The European Two-Phase Flow Group was established on October 4, 1963, at the Royal Institute of Technology in Stockholm, after the EAES Symposium on Two- Phase Flow, Steady State Burnout and Hydrodynamics Instability. Professor Becker, who at the time held the chair of Reactor Technology at the Royal Institute of Technology, was the founder. Further information available at the Enea site.

The main objective of the Meetings has been to have informal discussions among researchers on multiphase flows. All subjects related to gas-liquid flows can be discussed at the Group Meetings, e.g. boiling, flashing and condensation, bubbly flows, droplet flows, annular flows, slug flows, liquid-liquid flows, horizontal and inclined flows, singularities and choked flows, instrumentation, computer codes, industrial systems, chemical engineering, environmental engineering, petroleum engineering, and nuclear reactors.

Where

Conference Center “Le Benedettine”, piazza San Paolo a Ripa d’Arno, Pisa

When

11-13 May 2026

Paper Submission

To define the structure of the Conference, a short abstract (100-400 words) explaining the contents and the aims of
the presentation should be sent by email to Paolo Di Marco,
e-mail: p.dimarco@ing.unipi.it
before May 1st 2008.

No full-texts are required at the Meeting.

Upon agreement with the author(s), presentation and/or other material will be posted on the Meeting site after the Meeting.

Event Schedule (Outline)
You may download the complete program here

May 10th
18:00-20:00 Early Bird Reception,
Grand Hotel Duomo, Via Santa Maria, 94, Pisa

May 11th
8:30-9:30 Registration
9:30-10:00 Welcome Addresses
10:00-10:40 Keynote lecture 1
10:40-11:20 Coffee Break
11:20-12:40 Session 1
12:40-14:50 Lunch
14:50-16:10 Session 2
16:10-16:50 Coffee Break
16:50-18:10 Session 3

20:00 Gala Dinner
Hotel Reale Vittoria, Lungarno Antonio Pacinotti, 12, Pisa

May 12th
8:30-9:00 Registration
9:00-9:40 Keynote Lecture 2
9:40-10:40 Session 4
10:40-11:20 Coffee Break
11:20-12:20 Session 5
12:20-13:40 Guided tour to Museo delle Antiche Navi
13:40-14:50 Lunch
14:50-16:10 Session 6
16:10-16:30 Coffee Break
16:30-17:10 Keynote Lecture 3
17:10-17:50 Session 7

19:30-21:00 Light Dinner (Apericena) at conference site

May 13th
8:30-9:00 Registration
9:00-9:40 Keynote Lecture 4
9:40-11:00 Session 8
11:00-11:30 Coffee Break
11:30-12:10 Session 9
12:10-12:30 Meeting Closure and Adjourn

Organizing Committee

Paolo Di Marco
Sauro Filippeschi
Alekos I. Garivalis
Mauro Mameli
Irene Marchi

Conference Chairs

Paolo Di Marco
Remi Revellin
John R. Thome

Gian Piero Celata
(Honorary Chair)

REGISTRATION

Please note:
attendance to the meeting is by invitation only. If you have not received an invitation and you would like to attend, contact the organizers.

Registration form (#4)

55th European Two-Phase Flow Group Meeting

Pisa, 11–13 May 2026

Registration Form

First Name

Last Name

CONFERENCE FEES

Registration fee includes:

Conference materials, Attendance to the sessions, coffee breaks, lunches on Monday and Tuesday, Welcome Reception on Sunday, Social Dinner on Monday, Social Event and Dinner on Tuesday

Please note that on-site payment will not be available

Select your registration fee

Early Registration (paymentup to April 27th) - € 550.00

Normal Registration (payment from April 28th to May 8th) - € 600.00

Accompanying person fee

Accompanying person - € 160.00 (includes Welcome Reception, Social Dinner on Monday, Social Event and Dinner on Tuesday)

Acompanying Person's Name

Please select the social activities you wish to attend

Welcome Reception, Sunday May 10th

Social Dinner, Monday May 11th

Social Event and Dinner, Tuesday May 12th

Please indicate any specific dietary restrictions related to particular medical conditions, as well as cultural and ethnic needs. Please indicate whether you prefer a vegetarian or vegan menu.

Please report here any communication you want to address to organizers:

PAYMENT AND INVOICING

Please submit this form and proceed to the next form to complete payment (you may do it even at a later time)

PAYMENT

Payment form (#5)

55th European Two-Phase Flow Group Meeting

Pisa, 11–13 May 2026

PAYMENT FORM

PLEASE BE SURE TO HAVE COMPLETED ALSO THIS ADDITIONAL FORM WITH INVOICING DATA
BEFORE PROCEEDING TO PAYMENT

First Name

Last Name

CONFERENCE FEES

Registration fee includes:

Conference materials, Attendance to the sessions, coffee breaks, lunches on Monday and Tuesday, Welcome Reception on Sunday, Social Dinner on Monday, Social Event and Dinner on Tuesday

Cancellation policy:

A full refund of the registration fee will be granted for cancellations communicated by April 27, 2026. No refunds will be issued after this date.

Please note that on-site payment will not be available

Select your registration fee

Early Registration (payment up to April 27th) - € 550.00

Normal Registration (payment from April 28th to May 8th) - € 600.00

Accompanying person fee

Accompanying person - € 160.00 (includes Welcome Reception, Social Dinner on Monday, Social Event and Dinner on Tuesday)

INVOICING

IMPORTANT: Please, select the legal entity nominee for the invoice (which can be different from the payer). The dedicated data section will open upon selection. If you’ve any doubts, ask to your University Administration Office.

If the nominee of the invoice is a University (worldwide) and you need the invoice in advance, write to our administrative office bilanciodestec@ing.unipi.it, texting all the required data.

Invoice Type

Persona fisica – Italia

Ente privato / società – Italia

Ente pubblico / Università – Italia

Individual – Abroad

Private company – Abroad

Public institution – Abroad

PERSONA FISICA - ITALIA

Fill this section only if you are an individual residing in Italy

Place & date of birth (e.g. Rome, Italy – dd/mm/yyyy)

Full address

Fiscal Code or VAT number

Phone number (+CC AAA 12345)

ENTE PRIVATO - ITALIA

Fill this section only if you are a private company located in Italy

Ragione sociale

Indirizzo completo

Partita IVA

Codice SDI

Phone number

PEC

ENTE PUBBLICO OD UNIVERSITÀ – ITALIA

Fill this section only if you belong to a Public institution or University located in Italy

Indirizzo completo

Denominazione

Partita IVA

Codice IPA Ufficio

Phone number

PEC

INDIVIDUAL - OUTSIDE ITALY

Fill this section only if you are a an individual residing outside Italy

Place & date of birth (e.g. Rome, Italy – dd/mm/yyyy)

Street Address

City, Postal Code, Country

Taxpayer code or VAT code (when applicable)

Phone number (including country and area code)

PRIVATE COMPANY - OUTSIDE ITALY

Fill this section only if you belong to a private company located outside Italy

Company Name

Street Address

City, Postcode, Country

Taxpayer or VAT number (if applicable)

Phone number (including country and area code)

E-mail address

PUBLIC INSTITUTION OR UNIVERSITY – ABROAD

Fill this section only if you belong to a public institution or university located outside Italy

Public institution or University name

Street adddress

City, Postcode, Country

Taxpayer or VAT number (when applicable)

Phone Number (including country and area code)

E-mail address

Payment section

PLEASE DO NOT FORGET TO SUBMIT THIS FORM AFTER HAVING COMPLETED THE PAYMENT

Link di pagamento (persona fisica e liberi professionisti):

Click here to proceed with payment

Payment link (Ente privato o società Italia):

Click here to proceed with payment

Metodo di pagamento (Ente pubblico o Università Italia)

Giroconto su Banca d’Italia
Codice IBAN: IT74L0100004306TU0000013181
indicare nella causale: Dipartimento DESTEC

Payment receipt sending
Trasmissione ricevuta di pagamento

Send to the email address bilanciodestec@ing.unipi.it a pdf file of the receipt of payment of the registration fee.
THE FILE SHOULD BE NAMED AS: surname_name.pdf

Please report here any communication you want to address to organizers:

Venue

Pisa is a lovely city located not far from Florence (1 hour by train) in the north of Tuscany, one of the most wonderful regions of Italy.
The Miracles’ Square with the Dome, the Baptister and the
world-wide well known Leaning Tower represent the most unique and original complex of the tuscan Romanesque architecture. But many other attractions deserve some attention from the tourists such as the sculptures and the paintings of the local Thirteenth and Fourteenth
century stored in the St. Matthew National Museum, the ancient city, and many wonderful churches. Pisa is also a convenient location for
exploring Tuscany hills, wineyards, and its beautiful cities, such as Florence, Siena, S. Gimignano, Lucca, Volterra, etc. It offers also the possibility to reach most of the touristic attractions of Italy (Rome, Venice) by train (about 4 hrs.). The climate in early May is normally very pleasant in Pisa.

Pisa airport (http://www.pisa-airport.com/) is well connected with major international airports in Europe, including low cost companies (EasyJet, RyanAir). Transportation to downtown can be either by bus or by taxi (approx. 15 Euro).

Alternatively, the airport of Florence (http://www.aeroporto.firenze.it/IT/index.php) may be used. Pisa is reachable in about one hour by bus or train.

HOTEL RESERVATION
Participants are kindly asked to make their own room reservation.
There are many hotels, B&B and Airbnb within 1 km from the conference site.

CONFERENCE LOCATION: Conference Center “Le Benedettine”
Piazza S. Paolo a Ripa d’Arno, 16, PISA (Italy)

55th European Two-Phase Flow Group MeetingPisa 11-13 May 2026

About The Event

Where

When

Paper Submission

Event Schedule (Outline) You may download the complete program here

Organizing Committee

Conference Chairs

REGISTRATION

55th European Two-Phase Flow Group Meeting Pisa, 11–13 May 2026

CONFERENCE FEES

PAYMENT AND INVOICING

PAYMENT

55th European Two-Phase Flow Group Meeting Pisa, 11–13 May 2026

CONFERENCE FEES

INVOICING

PERSONA FISICA - ITALIA

ENTE PRIVATO - ITALIA

ENTE PUBBLICO OD UNIVERSITÀ – ITALIA

INDIVIDUAL - OUTSIDE ITALY

PRIVATE COMPANY - OUTSIDE ITALY

PUBLIC INSTITUTION OR UNIVERSITY – ABROAD

Payment section

Link di pagamento (persona fisica e liberi professionisti):

Payment link (Ente privato o società Italia):

Metodo di pagamento (Ente pubblico o Università Italia)

Payment link (Individual residing outside Italy):

Payment link (Private Company located outside Italy):

Payment link (Public Institution/University located outside Italy):

Payment receipt sending Trasmissione ricevuta di pagamento

Venue

55th European Two-Phase Flow Group Meeting
Pisa 11-13 May 2026

Event Schedule (Outline)
You may download the complete program here

55th European Two-Phase Flow Group Meeting

Pisa, 11–13 May 2026

55th European Two-Phase Flow Group Meeting

Pisa, 11–13 May 2026

Payment receipt sending
Trasmissione ricevuta di pagamento