management and physics of turbulent bubble suspensions in microgravity (BubSus)

research area: fluid dynamics

experiment title:

Management and Physics of Turbulent Bubble Suspensions in Microgravity

experiment acronym: BubSus

funding agency: ESA

grant number: CORA - Program

performing organization:

Departament d’Estrucura i Constituents de la Matèria, Facultat de Física – Universitat de Barcelona, Spain

prime investigator: Prof. Dr. Jaume Casademunt

experiment objective


  1. Bubble management: To develop the capability to generate a virtually homogeneous monodisperse bubble suspension carried by a turbulent pipe flow where we control separately:

    • the bubble size;
    • the bubble mean separation; and
    • the Reynolds number of the carrying flow.

  2. Physics of bubble turbulent flows: To have a first collection of data with the general aim to contribute to the understanding of bubble/turbulence interaction, long-time generation of large-scale structures in spatial bubble distribution and the statistics of bubble coalescence phenomena.

experimental setup

experiment campaigns

experiment year: 2011
number of drops: 19

experiment year: 2010
number of drops: 17