3 Work Packages have been designed to meet the 4 scientific objectives :
WP1 – Single and Two-phase flows experimental apparatus
Participants: FROMANT Guillaume, BECQUET Benoît, FLAHAUT Fabien, PONCIN Ghislain, M2 Student (year 1), PhD Student (years 2-4)
Technical Objectives: To create controlled two-phase turbulent flow conditions in order to resolve both the fluid and dispersed phases through hydroacoustic measurements and investigate turbulenceparticles interactions.
Scientific Objectives: To produce a general and practical scattering model for the microstructures formed by passive additive quantities in turbulent conditions.
The first Work Package is dedicated to adress the first objective and will be dedicated to the installation of the OGI tank, Single phase flow experiments with the OGI tank involving only bubbles or particules and Two-phase flow experiments with the OGI tank involving air bubbles and particules.
WP2 – Numerical simulations for backscattered echoes in single and two-phase turbulent flows
Participants: FROMANT Guillaume, STIENNE Georges, SCHMITT François, PhD Student (years 2-4)
Technical Objectives: Allying turbulence resolved simulations and synthetic backscattered echoes from a particles cloud in turbulent flows to elaborate strategies prone to twophase flow imaging.
Scientific Objectives: To discriminate the amplitude and phase contributions of the solid and fluid flow phases embedded in the backscattered echoes to qualify and quantify the resulting uncertainty on the instantaneous and net flux estimates.
The second Work Package designed to adress the second and third objectives, it will be dedicated to the development of a numerical model designed to reproduce the experiments carried in the WP1. To the Evaluation of the contribution of each phase to the synthetic echoes amplitude and phase using the developed model. And to the development of new techniques to solve the acoustic inversion for flux using the ensemble of the experimantal and numerical datas.
WP3 – Turbulence-particles interactions experiments
Participants: FROMANT Guillaume, SCHMITT François, BECQUET Benoît, FLAHAUT Fabien, PONCIN Ghislain, M2 Student (year 3), Post-doc (year 4)
Scientific Objectives: To investigate the influence of the interplay between turbulence-particle and particle-particle interactions on the sediment flux dynamics.
The last Work Package will focus on applying the two-phase inversion methodologies developed and tested in WP2 to investigate turbulence-particles interactions and complete the fourth objective.