The bubble, drop and particle unit: A second-generation fluid physics facility

The objectives of the Bubble, Drop and Particle Unit (BDPU) can be summarised as follows: Investigation into hydrostatics, dynamics, thermodynamics, electrodynamics, and more generally the dynamics of two phase mixtures. As a middle course between dedicated autonomy and multi-purpose usage, a modular approach has been adopted that should allow assembly into ‘as required facilities’ that can be reconfigured between flights to accommodate the mission's peculiar requirements of the investigators. The concept is centered around a service module which provides electronic control and monitoring data management, power supply, stimuli and diagnostic services. Interchangeable diagnostic modules will be available with a particular emphasis on the use of laser techniques.